[go: up one dir, main page]

WO2018155881A1 - Dispositif de transmission d'énergie sans fil, dispositif électronique recevant de l'énergie sans fil, et leur procédé de fonctionnement - Google Patents

Dispositif de transmission d'énergie sans fil, dispositif électronique recevant de l'énergie sans fil, et leur procédé de fonctionnement Download PDF

Info

Publication number
WO2018155881A1
WO2018155881A1 PCT/KR2018/002066 KR2018002066W WO2018155881A1 WO 2018155881 A1 WO2018155881 A1 WO 2018155881A1 KR 2018002066 W KR2018002066 W KR 2018002066W WO 2018155881 A1 WO2018155881 A1 WO 2018155881A1
Authority
WO
WIPO (PCT)
Prior art keywords
electronic device
power
charging
wireless power
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2018/002066
Other languages
English (en)
Korean (ko)
Inventor
여성구
김창용
이준현
권상욱
박성범
박재현
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Priority to EP18757957.8A priority Critical patent/EP3565087B1/fr
Priority to CN201880013381.3A priority patent/CN110383630B/zh
Priority to US16/488,155 priority patent/US11183882B2/en
Publication of WO2018155881A1 publication Critical patent/WO2018155881A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0414—Substantially flat resonant element parallel to ground plane, e.g. patch antenna in a stacked or folded configuration
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
    • H02J50/23—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/24—Inductive coupling
    • H04B5/26—Inductive coupling using coils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/60—Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings

Definitions

  • Various embodiments of the present invention relate to a wireless power transmission apparatus for wirelessly transmitting power, an electronic device for wirelessly receiving power, and a method of operating the same.
  • Wireless power transmission includes magnetic induction, magnetic resonance, and electromagnetic waves.
  • Magnetic induction or magnetic resonance is advantageous for charging an electronic device located at a relatively short distance from a wireless power transmission device.
  • the electromagnetic wave method is more advantageous for long distance power transmission of several m to the magnetic induction or the magnetic resonance method.
  • Electromagnetic wave method is mainly used for long distance power transmission, and can locate power receiver in remote place and transmit power most efficiently.
  • the position of the wireless power transmitter is mainly fixed, and thus the distance from the wireless power transmitter to the electronic device is frequently changed.
  • a user may have an electronic device, such as a mobile device, be located close to the wireless power transmission device, or may be located far from the wireless power transmission device.
  • the wireless power transmitter performs charging according to one charging method, a problem may occur that charging is performed at a relatively low efficiency according to the distance between the wireless power transmitter and the electronic device.
  • the wireless power transmitter uses an electromagnetic wave method that is advantageous for long distance power transmission, the electromagnetic wave method should be used even when the electronic device is in close proximity.
  • the induction method or the resonance method may have higher transmission efficiency.
  • Various embodiments of the present invention can provide a wireless power transmission apparatus and an operation method thereof, including a power transmission circuit of the electromagnetic wave method for the long-distance transmission, and a power transmission circuit of the induction or resonance method for the short-range transmission.
  • an electronic device including an electromagnetic wave type power reception circuit for remote transmission and an induction type or resonance type power reception circuit for short range transmission may be provided.
  • an apparatus for transmitting power wirelessly may include a plurality of patch antennas; coil; And a processor, wherein the processor detects an electronic device, selects at least one of the plurality of patch antennas or the coils as a power transmission circuit for transmitting power for charging the electronic device, and selects the selection. According to at least one of the plurality of patch antennas or the coil, it can be controlled to transmit the power.
  • An electronic device may include a plurality of patch antennas, coils, communication circuits, and processors, and the processor may be configured to power at least one of the plurality of patch antennas or the coils from a wireless power transmitter. Is selected as a power receiving circuit for receiving, and information about the selected power receiving circuit is transmitted to the wireless power transmitter through the communication circuit, and at least one of the plurality of patch antennas or the coils according to the selection. Through one, it may be controlled to receive the power.
  • an operation method of a wireless power transmission apparatus including a plurality of patch antennas and coils may include: detecting an electronic device; Selecting at least one of the plurality of patch antennas or the coils as a power transmission circuit for transmitting power for charging the electronic device; And controlling to transmit the power through at least one of the plurality of patch antennas or the coils according to the selection.
  • a method of operating an electronic device including a plurality of patch antennas and coils may include: a power receiving circuit for receiving power from a wireless power transmitter from at least one of the plurality of patch antennas or the coils; Selecting to; Transmitting information about the selected power receiving circuit to the wireless power transmitter; And receiving the power through at least one of the plurality of patch antennas or the coils according to the selection.
  • a wireless power transmitter and a method of operating the same may be provided that transmit power according to an electromagnetic wave method, a resonance method, or an induction method according to a distance.
  • an apparatus for transmitting power and a method of operating the same may be provided in accordance with at least one of electromagnetic waves, resonance, and induction.
  • an electronic device and a method of operating the same may be provided that receive power according to an electromagnetic wave method, a resonance method, or an induction method according to a distance.
  • receive power according to an electromagnetic wave method, a resonance method, or an induction method according to a distance not only the distance but also the charging scheme supported by the electronic device, information related to power received by the electronic device, charging related information of the electronic device, wireless power transmission efficiency, wireless power transmission related protocol, and obstacle location
  • An electronic device and a method of operating the same may be provided that receive power according to at least one of an electromagnetic wave method, a resonance method, and an induction method according to various information such as whether or not.
  • FIG. 1 is a conceptual diagram illustrating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.
  • FIG. 2 is a conceptual diagram illustrating a wireless power transmission system according to various embodiments of the present disclosure.
  • 3A is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.
  • 3B is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.
  • 4B is a block diagram of a wireless power transmission apparatus according to various embodiments of the present disclosure.
  • 4C is a block diagram of a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.
  • 4D is a block diagram of a wireless power transmission apparatus according to various embodiments of the present disclosure.
  • FIG. 5 is a flowchart illustrating a method of operating a wireless power transmitter according to various embodiments of the present disclosure.
  • 6A is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.
  • 6B is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.
  • FIG. 7A is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.
  • FIG. 7B is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.
  • 7C is a diagram illustrating a user interface for inputting a charging method selection of an electronic device according to various embodiments of the present disclosure.
  • 8A is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.
  • 8B is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.
  • FIG. 9 is a flowchart illustrating a method of operating a wireless power transmitter according to various embodiments of the present disclosure.
  • 10A is a flowchart illustrating a method of operating a wireless power transmitter according to various embodiments of the present disclosure.
  • 10B is a conceptual diagram illustrating an arrangement of a wireless power transmitter and a living body according to various embodiments of the present disclosure.
  • FIG. 11 is a flowchart illustrating a method of operating a wireless power transmitter or an electronic device according to various embodiments of the present disclosure.
  • FIG. 12 is a view illustrating a user interface for inducing a change in a charging scheme of a wireless power transmitter or an electronic device according to various embodiments of the present disclosure.
  • FIG. 13 is a flowchart illustrating a method of operating a wireless power transmitter or an electronic device according to various embodiments of the present disclosure.
  • FIG. 14 illustrates information associated with a charging scheme displayed on an electronic device according to various embodiments of the present disclosure.
  • 15 is a flowchart illustrating a method of operating a wireless power transmitter or an electronic device according to various embodiments of the present disclosure.
  • 17 is a flowchart illustrating an operation method of a wireless power transmitter and a plurality of electronic devices according to various embodiments of the present disclosure.
  • 19 is a flowchart illustrating a method of operating a wireless power transmitter according to various embodiments of the present disclosure.
  • 20A is a conceptual diagram illustrating a charging of an electronic device of a wireless power transmitter according to various embodiments of the present disclosure.
  • 20B and 20C illustrate conceptual diagrams for describing RF wave formation for a plurality of positions according to various embodiments of the present disclosure.
  • 21 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure.
  • 22A to 22F illustrate conceptual diagrams for describing an arrangement of a wireless power transmission apparatus according to various embodiments of the present disclosure.
  • 23 is a conceptual diagram illustrating a criterion for determining near-field charging and far-field charging according to various embodiments of the present disclosure.
  • 24A is a plan view illustrating a position of a coil and patch antenna array according to various embodiments of the present disclosure.
  • FIG. 24B is a first side view of the coil and the patch antenna array viewed in a first direction to describe a position of the coil and patch antenna array according to various embodiments of the present disclosure
  • 24C is a perspective view illustrating a position of a coil and a patch antenna array according to various embodiments of the present disclosure.
  • 24D illustrates a second side view, viewed from a second direction, for explaining the position of the coil and patch antenna array according to various embodiments of the present disclosure.
  • 24E illustrates an RF wave formed by a patch antenna array according to various embodiments of the present invention.
  • 24F illustrates a magnetic field formed by a coil in accordance with various embodiments of the present invention.
  • 25 is a conceptual diagram illustrating a position of a coil and patch antenna array according to various embodiments of the present disclosure.
  • the expression “device configured to” may mean that the device “can” together with other devices or components.
  • processor configured (or configured to) perform A, B, and C may be implemented by executing a dedicated processor (eg, an embedded processor) to perform its operation, or one or more software programs stored in a memory device. It may mean a general purpose processor (eg, a CPU or an application processor) capable of performing the corresponding operations.
  • the wireless power transmitter or electronic device may be, for example, a smartphone, a tablet PC, a mobile phone, a video phone, an e-book reader, a desktop PC, a laptop PC, a netbook computer, a workstation, It may include at least one of a server, a PDA, a portable multimedia player (PMP), an MP3 player, a medical device, a camera, and a wearable device.
  • Wearable devices may be accessory (e.g. watches, rings, bracelets, anklets, necklaces, eyeglasses, contact lenses, or head-mounted-devices (HMDs), textiles or clothing integrated (e.g.
  • a wireless power transmitter or electronic device may be, for example, a television, a digital DVD (DVD). player, audio, refrigerator, air conditioner, cleaner, oven, microwave, washing machine, air purifier, set-top box, home automation control panel, security control panel, media box, game console, electronic dictionary, electronic key, camcorder Or at least one of an electronic picture frame.
  • DVD digital DVD
  • the wireless power transmission device or electronic device may include a variety of medical devices (e.g., various portable medical devices (such as blood glucose meters, heart rate monitors, blood pressure meters, or body temperature meters), magnetic resonance angiography (MRA), MRI ( magnetic resonance imaging (CT), computed tomography (CT), imagers, or ultrasounds), navigation devices, global navigation satellite systems (GNSS), event data recorders (EDRs), flight data recorders (FDRs), automotive infotainment Devices, ship electronics (e.g. ship navigation devices, gyro compasses, etc.), avionics, security devices, vehicle head units, industrial or household robots, drones, ATMs in financial institutions, POS point of sales, or Internet of Things devices (e.g.
  • various portable medical devices such as blood glucose meters, heart rate monitors, blood pressure meters, or body temperature meters
  • MRA magnetic resonance angiography
  • CT magnetic resonance imaging
  • CT computed tomography
  • imagers imagers
  • ultrasounds navigation devices
  • GNSS
  • a wireless power transmission device or electronic device is a part of a furniture, building / structure or automobile, an electronic board, an electronic signature receiving device, a projector, or a variety of measurement devices (eg : Water, electricity, gas, or radio wave measuring instrument).
  • the wireless power transmission device or electronic device may be flexible or a combination of two or more of the various devices described above.
  • the wireless power transmission device or the electronic device according to the embodiment of the present document is not limited to the above-described devices.
  • the term user may refer to a person who uses an electronic device or a wireless power transmission device or a device (eg, an artificial intelligence electronic device) that uses an electronic device.
  • FIG. 1 is a conceptual diagram illustrating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.
  • the apparatus 100 for transmitting power wirelessly may include a first power transmission circuit 101 and a second power transmission circuit 102.
  • the first power transmission circuit 101 may be implemented by, for example, a power transmission circuit by an induction method.
  • the first power transmission circuit 101 may be, for example, a power source, a DC-AC converter circuit, an amplifier circuit, an impedance matching circuit, at least one capacitor, at least one Coils, communication modulation and demodulation circuits, and the like.
  • At least one capacitor may form a resonant circuit together with at least one coil.
  • the first power transmission circuit 101 may be implemented in a manner defined in a wireless power consortium (WPC) standard (or Qi standard).
  • WPC wireless power consortium
  • the first power transmission circuit 101 may be implemented with, for example, a power transmission circuit by a resonance method.
  • the first power transmission circuit 101 may include, for example, a power source, a DC-AC converter circuit, an amplifier circuit, an impedance matching circuit, at least one capacitor, and at least one Coils, out-band communication circuits (eg, Bluetooth low energy (BLE) communication circuits), and the like.
  • At least one capacitor and at least one coil may constitute a resonant circuit.
  • the first power transmission circuit 101 may be implemented in a manner defined in the Alliance for Wireless Power (A4WP) standard (or, the air fuel alliance (AFA) standard).
  • A4WP Alliance for Wireless Power
  • AFA air fuel alliance
  • the first power transmission circuit 101 may include a coil capable of generating the induction magnetic field 130 when a current flows according to a resonance method or an induction method. According to an embodiment, the first power transmission circuit 101 may include both a power transmission circuit by an induction method and a power transmission circuit by a resonance method.
  • the second power transmission circuit 102 may be implemented as a power transmission circuit by, for example, an electromagnetic wave method.
  • the second power transmission circuit 102 is, for example, a power source, a DC-AC converter circuit, an amplifier circuit, a distribution circuit, a phase shifter, an antenna array for power transmission including a plurality of patch antennas, an out-band communication module. (Eg, BLE communication module).
  • Each of the plurality of patch antennas may form a radio frequency (RF) wave.
  • RF radio frequency
  • the wireless power transmitter 100 may transmit power through the first power transmitter circuit 101. It may transmit to the electronic device 150.
  • the magnetic field 130 generated from the coil included in the first power transmission circuit 101 may be transmitted to the electronic device 150.
  • the transmission of the power 130 through the coil may include a magnetic field (via the coil). 130 may be referred to as generating.
  • the magnetic field 130 may change in size with time.
  • transmitting power through the coil may be referred to as transferring energy through the coil.
  • the electronic device 150 may include a coil, and the induced electromotive force may be generated in the coil by the magnetic field 130 whose size is changed according to the time generated in the vicinity.
  • the process of generating induced electromotive force may be referred to as the electronic device 150 receiving power or energy through a coil.
  • the wireless power transmission apparatus 100 may determine that the power is transmitted through the first power transmission circuit 101 according to the induction method or the resonance method, or the electronic device ( 150 may decide.
  • the wireless power transmitter 100 may transmit power through the second power transmitter circuit 102. It may transmit to the electronic device 150.
  • the RF wave 131 generated from the plurality of patch antennas included in the second power transmission circuit 102 may be transmitted to the electronic device 150.
  • transmitting power through the plurality of patch antennas may include a plurality of patches. It may be referred to as generating an RF wave 131 through two patch antennas. The RF wave 131 may change in size with time.
  • transmitting power through the plurality of patch antennas may be referred to as transferring energy through the plurality of patch antennas.
  • the electronic device 150 may include a plurality of patch antennas for reception, and the patch antenna may generate a current or a voltage by the RF wave 131 whose size is changed according to a time generated in the vicinity.
  • the process of generating current or voltage by the plurality of patch antennas may be referred to as the electronic device 150 receiving power or energy through the plurality of patch antennas.
  • the wireless power transmission apparatus 100 may determine that the power is transmitted through the second power transmission circuit 102 according to the electromagnetic wave method, or the electronic device 150 You can also decide.
  • the wireless power transmitter 100 may transmit power. May be changed from the first power transmission circuit 101 to the second power transmission circuit 102.
  • the wireless power transmitter 100 may include a first power transmitter circuit 101 and a second power transmitter circuit when the electronic device 150 is located at a distance of a first distance X1. 102 may be used to transmit energy. For example, when rapid charging of the electronic device 150 is required, the wireless power transmitter 100 may transmit energy using a plurality of power transmitter circuits.
  • the wireless power transmitter 100 may transmit energy in an electromagnetic manner through the second power transmitter circuit 102 even when the electronic device 150 is located at a distance of the first distance X1. You can also send.
  • the wireless power transmitter 100 may transmit energy through the second power transmitter circuit 102 based on the information about the support scheme.
  • the wireless power transmitter 100 or the electronic device 150 may include a charging scheme supported by the electronic device, information related to power received by the electronic device, charging related information of the electronic device, wireless power transmission efficiency, and wireless power transmission related protocol.
  • the charging method may be determined according to various information such as the location of the obstacle.
  • the apparatus 100 for transmitting power wirelessly may transmit energy using a power transmission circuit corresponding to the determined charging method.
  • FIG. 2 is a conceptual diagram illustrating a wireless power transmission system according to various embodiments of the present disclosure.
  • the second power transmission circuit 102 may wirelessly transmit power to the at least one electronic device 150, 160.
  • the second power transmission circuit 102 may include a plurality of patch antennas 111-126.
  • the patch antennas 111 to 126 are not limited as long as they are each antennas capable of generating an RF wave 131 or 132. At least one of an amplitude and a phase of the RF wave generated by the patch antennas 111 to 126 may be adjusted by a processor of the second power transmission circuit 102 or the wireless power transmission apparatus 100.
  • the RF wave generated by each of the patch antennas 111 to 126 will be referred to as a sub-RF wave.
  • the second power transmission circuit 102 may adjust at least one of the amplitude and phase of each of the sub-RF waves generated by the patch antennas 111 through 126. Meanwhile, sub-RF waves may interfere with each other. For example, at one point the sub-RF waves may constructively interfere with each other, and at another point the sub-RF waves may cancel each other.
  • the patch antennas 111 to 126 may generate sub-RFs so that the sub-RF waves may constructively interfere with each other at the first point (x1, y1, z1). At least one of the amplitude and phase of each of the RF waves may be adjusted.
  • the apparatus 100 for transmitting power wirelessly may determine that the electronic device 150 is disposed at the first points x1, y1, and z1.
  • the position of the electronic device 150 may be, for example, a point where the power reception antenna of the electronic device 150 is located.
  • the wireless power transmitter 100 may determine the location of the electronic device 150 according to various methods.
  • the wireless power transmitter 100 may determine the location of the electronic device 150 according to vision recognition or radar recognition.
  • the wireless power transmitter 100 may receive a communication signal (for example, a BLE communication signal) received from the electronic device 150 through a plurality of communication antennas, and a reception time point of each of the plurality of communication antennas.
  • the location of the electronic device 150 may be determined by using the information about.
  • the apparatus 100 for transmitting power wirelessly may determine a direction in which the electronic device 150 is located in various ways, such as a time difference of arrival (TDOA) or a frequency difference of arrival (FDOA).
  • the wireless power transmitter 100 may determine a distance between the wireless power transmitter 100 and the electronic device 150 based on a difference between the transmission strength included in the communication signal and the reception strength received by the communication antenna. Can be.
  • the apparatus 100 for transmitting power wirelessly may determine the position of the electronic device 150 based on the determined direction and the determined distance. For example, the wireless power transmission apparatus 100 may form a test RF wave according to a plurality of directions and a plurality of distances.
  • the electronic device 150 may report the information on the magnitude of the received power (for example, information such as a voltage at an output terminal of the rectifier of the electronic device 150) to the wireless power transmitter 100.
  • the apparatus 100 for transmitting power wirelessly may determine that the electronic device 150 is located at a position reported to receive optimal power.
  • the electronic device 150 may first determine a direction in which the electronic device 150 is located according to a communication signal, and form a test RF wave in the corresponding direction.
  • the apparatus 100 for transmitting power wirelessly may modulate the test RF wave to include at least one of identification information on a direction or identification information on a distance in the test RF wave.
  • the electronic device 150 may demodulate the received test RF wave, and report at least one of identification information on a direction included in the demodulation result or identification information on a distance to the wireless power transmitter 100 through a communication circuit. can do.
  • the apparatus 100 for transmitting power wirelessly may determine the location of the electronic device 150 based on at least one of identification information on a direction or identification information on a distance included in a report result.
  • the apparatus 100 for transmitting power wirelessly may form pilot RF waves in a plurality of directions, and may store information (eg, phase error, time of flight, etc.) regarding the reflected waves as reference information.
  • the apparatus 100 for transmitting power wirelessly may form a pilot RF wave periodically or non-periodically and receive a reflected wave, and if it is detected that the information on the reflected wave is different from the previously stored reference information, It may be determined that the electronic device 150 is located.
  • the wireless power transmitter 100 may receive information about the location of the electronic device 150 from another external electronic device.
  • the wireless power transmitter 100 may receive information about a location directly from the electronic device 150.
  • the method of determining the position of the electronic device 150 of the wireless power transmitter 100 described above is merely exemplary, and any technology capable of determining the position may be easily understood by those skilled in the art.
  • the second power transmission circuit 102 may control the patch antennas 111 to 126 such that the sub-RF waves are constructive interference with each other at the first points x1, y1, and z1.
  • controlling the patch antennas 111 to 126 means controlling the magnitude of a signal input to each of the patch antennas 111 to 126, or a phase (or delay) of a signal input to each of the patch antennas 111 to 126. ) May mean controlling.
  • beam forming which is a technique for controlling the RF wave to constructively interfere at a specific point.
  • beam-forming used in the present invention.
  • various beamforming methods may be used, as disclosed in US Patent Publication 2016/0099611, US Patent Publication 2016/0099755, US Patent Publication 2016/0100124, and the like.
  • the form of the RF wave formed by beam-forming may be referred to as pockets of energy.
  • the RF wave 131 formed by the sub-RF waves may have a maximum amplitude at the first point (x1, y1, z1), and thus the electronic device 150 may wirelessly transmit power with high efficiency. Can be received.
  • the second power transmission circuit 102 may detect that the electronic device 160 is disposed at the second points x2, y2, and z2.
  • the second power transmission circuit 102 may control the patch antennas 111 to 126 such that the sub-RF waves are constructive interference at the second points x2, y2, and z2 to charge the electronic device 160.
  • the RF wave 132 formed by the sub-RF waves may have a maximum amplitude at the second point (x2, y2, z2), and the electronic device 160 may receive wireless power with high transmission efficiency. Can be.
  • the electronic device 150 may be disposed on the right side.
  • the second power transmission circuit 102 may apply a larger delay to the sub-RF waves formed from the patch antennas (eg, 114, 118, 122, 126) disposed on the right side. That is, the sub-RF waves formed from the patch antennas (for example, 111, 115, 119, 123) disposed on the left side are first formed, and then the patch antennas (for example, 114, 118, 122, 126) disposed on the right side after a predetermined time passes. A sub-RF wave can be generated from.
  • the sub-RF waves may meet simultaneously at the point on the right side, that is, the sub-RF waves at the point on the right side may be constructively interfered.
  • the second power transmission circuit 102 may have a patch antenna on the left side (eg, 111, 115, 119, 123) and a patch antenna on the right side (eg, 114, 118, 122, 126). Substantially the same delay can be applied.
  • the second power transmission circuit 102 when beam-forming is performed at a point on the left side, the second power transmission circuit 102 has a patch antenna on the left side (eg, 111, 115, 119, 123) than a patch antenna on the right side (eg, 114, 118, 122, 126). A larger delay can be applied.
  • the second power transmission circuit 102 may oscillate the sub-RF waves substantially simultaneously throughout the patch antennas 111-126, and beam-forming by adjusting the phase corresponding to the delay described above. You can also do As described above, the wireless power transmitter 100 may transmit power or energy to the electronic device 150 located through the plurality of patch antennas 111 to 126 included in the second power transmitter circuit 102. have.
  • 3A is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.
  • the wireless power transmitter 100 may detect the electronic device 150.
  • the wireless power transmitter 100 or the electronic device 150 may perform a specific operation by various hardware included in the wireless power transmitter 100 or the electronic device 150, such as a processor. It may mean that the control circuit performs a specific operation. Alternatively, performing the specific operation by the wireless power transmitter 100 or the electronic device 150 may mean that the processor controls other hardware to perform the specific operation. Alternatively, when the wireless power transmitter 100 or the electronic device 150 performs a specific operation, the wireless power transmitter 100 or the electronic device 150 may perform a specific operation that is stored in a storage circuit (eg, a memory) of the wireless power transmitter 100 or the electronic device 150.
  • a storage circuit eg, a memory
  • the wireless power transmitter 100 may detect the electronic device 150 according to various methods. For example, the wireless power transmitter 100 may detect the electronic device 150 according to vision recognition or radar recognition. For example, the wireless power transmitter 100 may detect the electronic device 150 according to a method defined in a standard of a resonance method or a standard of an induction method. In the case of conforming to the WCP standard (or Qi standard), the wireless power transmitter 100 transmits a ping signal and receives a response according to the in-band communication, and the electronic device 150 detects it. It can be judged.
  • the apparatus 100 for transmitting power wirelessly may obtain a response by performing on / off keying demodulation on a current or voltage applied to a coil.
  • the wireless power transmitter 100 may apply a beacon for detecting the electronic device 150 to a coil (or a resonant circuit).
  • the beacons cause short beacons or communication circuitry of an electronic device to detect load changes caused by objects placed in the charging region, for example defined in the AFA standard, to cause a predetermined signal (e.g., , A long beacon used to transmit an Advertisement signal in a BLE communication scheme.
  • the apparatus 100 for transmitting power wirelessly may detect a load change during a beacon application period, receive an advertisement signal defined by the BLE standard, or receive an intensity of an advertisement signal (eg, RSSI (The electronic device 150 may be detected based on various conditions or a combination of conditions, such as a condition in which received signal strength indication) is greater than or equal to a threshold.
  • the electronic device 150 may be detected by receiving a communication signal (for example, an advertisement signal) or analyzing the reflected wave with respect to the pilot RF wave.
  • the wireless power transmitter 100 may detect the electronic device 150 using a combination of the above-described detection methods of the various electronic devices 150.
  • the wireless power transmitter 150 may detect that the electronic device 150 is located in a chargeable area by vision recognition or radar recognition, and then, by forming electromagnetic waves and using reflected waves reflected therein. You can also get a more accurate location.
  • the wireless power transmitter 150 may detect that the electronic device 150 is located in a chargeable area in response to a ping signal, and then determine a more accurate position by forming an electromagnetic wave and using reflected waves reflected. It may be. There is no limitation on the detection method of the electronic device 150.
  • the wireless power transmitter 100 may include a charging scheme supported by the electronic device, information related to power received by the electronic device, charging related information of the electronic device, wireless power transmission efficiency, wireless power transmission related protocol, The charging method may be selected based on various information such as the location of the obstacle. Embodiments of the wireless power transmitter 100 selecting a charging method based on various information will be described later in more detail.
  • the wireless power transmitter 100 may transmit energy using the selected power transmitter circuit.
  • the electronic device 150 may perform charging by using energy from the wireless power transmission device. For example, the electronic device 150 may receive information on the selected charging method from the wireless power transmitter 100, and may select a power receiving circuit according to the received information. Alternatively, the electronic device 150 may receive power by using a plurality of power transmission circuits, and may select and charge a power reception circuit for receiving power having a large magnitude as a result of the reception.
  • the apparatus 100 for transmitting power wirelessly may transmit information on the selected charging method to the electronic device 150 before or after transmitting energy in operation 305.
  • the apparatus 100 for transmitting power wirelessly transmits information required for performing a selected charging scheme with the electronic device 150 (for example, information to be defined in a standard) before or after transmitting energy in operation 305. ) Can be exchanged.
  • the wireless power transmitter 100 and the electronic device 150 may perform an operation (eg, a preparation operation for charging defined in a standard) required by the selected charging method.
  • a charging scheme or a power transmission circuit for transmitting energy may be selected by the wireless power transmission apparatus 100.
  • 3B is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.
  • the wireless power transmitter 100 may detect the electronic device 150.
  • the wireless power transmitter 100 may obtain information related to a distance from the wireless power transmitter 100 to the electronic device 150.
  • the wireless power transmitter 100 may determine the distance to the electronic device 150 based on the vision recognition or radar recognition result.
  • the wireless power transmitter 100 receives a communication signal from the electronic device 150, and compares the strength of the received communication signal with a transmission strength included in the communication signal to the electronic device 150. You can determine the distance.
  • the wireless power transmitter 100 may receive information about the location of the electronic device 150 from the electronic device 150 or another electronic device, and based on the information about the location of the electronic device 150. The distance from the wireless power transmitter 100 to the electronic device 150 may be determined.
  • the indoor location measuring device may measure coordinates in the room of the electronic device 150, and may transmit the location information to the wireless power transmitter 100.
  • the indoor location measuring device may be an electronic device specialized in vision recognition or a radar method, and more accurately measure information on the location of the electronic device 150.
  • the wireless power transmitter 100 may receive information on a location directly from the electronic device 150.
  • the electronic device 150 may determine the current location according to various methods such as Wi-Fi signal-based indoor positioning technology, indoor positioning technology using a geomagnetic map, and indoor positioning technology using an NFC tag method. It may also transmit to the device 100.
  • the apparatus 100 for transmitting power wirelessly may determine a distance to the electronic device 150 by comparing its indoor coordinates with the indoor coordinates of the received electronic device 150.
  • the wireless power transmitter 100 may determine the distance to the electronic device 100 according to various methods, and the method of determining the distance is not limited.
  • the information related to the distance may also include information dependent on the distance between the wireless power transmitter 100 and the electronic device 150.
  • information on the magnitude of power received by the electronic device 150 may also be information related to a distance, which may be referred to as received power related information.
  • the received power related information is information related to power received by the electronic device from the wireless power transmitter, and for example, voltage, current, power at a specific point of the electronic device 150 (for example, an output terminal of the rectifier or an input terminal of the rectifier). It may be the size and the like.
  • the electronic device 150 may transmit the information about the voltage at the output terminal of the rectifier to the wireless power transmitter 100, and the wireless power transmitter 100 may be applied to the voltage at the output terminal of the rectifier. You can also choose the charging method. On the other hand, it will be readily understood by those skilled in the art that there is no limit to a specific point for measuring the magnitude of voltage, current, and power.
  • the wireless power transmitter 100 may select whether to charge the electronic device by using the plurality of patch antennas or the electronic device by using a coil for short-term charging by using the obtained information. That is, the wireless power transmitter 100 may select whether to charge the electronic device 100 by the electromagnetic wave method or the electronic device 100 by the resonance method or the induction method by using the obtained information. For example, if it is determined that the distance from the wireless power transmitter 100 to the electronic device 150 exceeds a threshold, the wireless power transmitter 100 will charge the electronic device 150 by an electromagnetic wave method. That is, it can be selected to charge using a plurality of patch antennas.
  • the wireless power transmitter 100 may charge the electronic device 150 in an inductive or resonant manner. That is, it may be selected to charge using a coil provided for near charge.
  • the wireless power transmission apparatus 100 may transmit information related to a charging scheme corresponding to the selected power transmission circuit to the electronic device.
  • the electronic device 150 may select a power receiving circuit to receive energy using the received information.
  • the wireless power transmitter 100 may transmit energy using the selected power transmitter circuit.
  • the electronic device 150 may perform charging by using energy from the wireless power transmission device 100.
  • the electronic device 150 may convert energy into current, voltage, or power through the selected power receiving circuit.
  • the apparatus 100 for transmitting power wirelessly may select a charging method using information related to the distance to the electronic device 150.
  • the electronic device 150 may determine the distance between the wireless power transmitter 100 and the electronic device 150, and the electronic device 150 selects a charging method, and the wireless power transmitter 100 may be notified.
  • the apparatus 100 for transmitting power wirelessly may select a power transmission circuit according to the notified charging method.
  • 3C is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.
  • the electronic device 150 may select whether to receive energy from a plurality of patch antennas or to receive energy from a coil.
  • the electronic device 150 includes a plurality of patch antennas capable of receiving power according to an electromagnetic wave method and at least one coil capable of receiving power according to an induction method or a resonance method. can do. That is, the electronic device 150 may select a charging method, and determine the power receiving circuit corresponding to the selected charging method as at least one of a plurality of patch antennas or coils.
  • the wireless power transmitter 100 may transmit test power according to a plurality of charging methods.
  • the apparatus 100 for transmitting power wirelessly may transmit first test power according to a resonance method, and may transmit second test power according to an electromagnetic wave method sequentially or simultaneously.
  • the apparatus 100 for transmitting power wirelessly may determine the position of the electronic device 150 in advance, thereby controlling the RF wave to be beamformed at the position of the electronic device 150. .
  • the electronic device 150 may receive the first test power and the second test power sequentially or simultaneously.
  • the electronic device 150 may select a charging method for transmitting a larger power by comparing the received power (eg, current, voltage, or power).
  • the electronic device 150 may transmit information about the selected charging method to the wireless power transmitter 100. As the test power is provided, even when the battery of the electronic device 150 is completely discharged, the electronic device 150 may be driven to transmit information.
  • the wireless power transmitter 100 may transmit energy by using a power transmission circuit corresponding to the received information.
  • the electronic device 101 may receive energy by using a power reception circuit corresponding to the selected charging method. As described above, the subject of selection of the charging method may be the electronic device 150.
  • 4A is a block diagram of a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.
  • the wireless power transmitter 100 may include a first power source 401, a first amplifying circuit 402, a distribution circuit 403, and a phase shifter 404. ), An antenna array 405 for power transmission, a processor 410, a communication circuit 420, a memory 430, a second power source 411, a second amplifying circuit 421, and a coil 422. Can be.
  • the electronic device 150 includes an antenna 451 for receiving power, a first rectifying circuit 452, a first converting circuit 453, a charger 454, a processor 455, a memory 457, and communication.
  • the circuit 460 may include a first sensing circuit 461, a second sensing circuit 466, a coil 471, a second rectifying circuit 472, and a second converting circuit 473.
  • the first power source 401 may provide AC power having a frequency (eg, 5.8 GHz) corresponding to the electromagnetic wave method.
  • the first power source 401 may include, for example, an apparatus for providing direct current power and an inverter (not shown) for converting the direct current power into alternating current power.
  • the processor 410 may, for example, control the output of the first power source 401.
  • the first amplifier circuit 402 may amplify the received power and provide it to the distribution circuit 403.
  • the processor 410 may control the amplification gain of the received power.
  • the first amplifier circuit 402 may include at least one amplifier.
  • the first amplifying circuit 402 and the second amplifying circuit 421 may be implemented by various amplifiers such as a drive amplifier (DA), a high power amplifier (HPA), a Gain Block Amplifier (GBA), or a combination thereof. There is no limit to the example.
  • the distribution circuit 403 can distribute the power output from the first amplifier circuit 402 into a plurality of paths. There is no limitation as long as the circuit can distribute the input power or signal to a plurality of paths. For example, the distribution circuit 403 may distribute power in as many paths as the number of patch antennas included in the power transmission antenna array 405.
  • the phase shifter 404 may shift the phase (or delay) of each of the plurality of AC powers provided from the distribution circuit 403.
  • the phase shifter 404 may be a hardware element such as, for example, HMC642 or HMC1113.
  • the shift degree of each of the phase shifters 404 may be controlled by the processor 410.
  • the processor 410 may determine the location of the electronic device 150, and the sub-RF waves may be generated at the location of the electronic device 150 (or the location of the antenna 451 for receiving power of the electronic device 150).
  • the phase of each of the plurality of AC powers may be shifted so that constructive interference.
  • Each of the plurality of patch antennas included in the power transmission antenna array 405 may generate sub-RF waves based on the received power.
  • the RF wave interfering with the sub-RF wave may be converted into a current, a voltage or a power in the power receiving antenna 451 and output.
  • the power receiving antenna 451 may include a plurality of patch antennas, and may generate current, voltage, or power of an AC waveform by using an RF wave formed around the electromagnetic wave, that is, an electromagnetic wave, which may be referred to as received power. Can be.
  • the first rectifier circuit 452 may rectify the received power into a direct current waveform.
  • the first converting circuit 453 may increase or decrease the voltage of the power of the DC waveform to a predetermined value and output the same.
  • the charger 454 may charge the battery by adjusting the magnitude of the voltage or the magnitude of the converted power. In some implementations, the charger 454 may not be included in the electronic device 150. In this case, the first converting circuit 453 may adjust the magnitude of the voltage or current of the power to be suitable for charging the battery. You can also charge directly.
  • the first sensing circuit 461 may sense a magnitude of a voltage, a magnitude of a current, or a magnitude of power at an output terminal of the first rectifier circuit 452.
  • the first sensing circuit 461 may include various types of voltmeters, such as an electrodynamic instrument voltmeter, an electrostatic voltmeter, and a digital voltmeter, or various types of ammeters such as a direct current ammeter, an alternating current ammeter, a digital ammeter, or the like. Or an analog to digital converter (ADC).
  • the processor 455 may check the magnitude of the current, the magnitude of the voltage, or the magnitude of the power sensed by the first sensing circuit 461.
  • the processor 455 may provide the magnitude of the sensed current, the magnitude of the voltage, or the magnitude of the power to the communication circuit 460 as first received power related information.
  • the communication circuit 460 may transmit a communication signal including the first reception power related information to the communication circuit 420 of the wireless power transmission apparatus 100.
  • the processor 455 or the processor 410 may be implemented in various circuits capable of performing operations such as a general purpose processor such as a CPU, a minicomputer, a microprocessor, a micro controlling unit (MCU), a field programmable gate array (FPGA), and the like. Can be, and there is no limit to the kind.
  • the processor 410 receives power transmitted from the power transmission antenna array 405 on the electronic device 150 based on the first received power related information included in the communication signal received by the communication circuit 420. Information about the size can be determined.
  • the second power source 411 may provide AC power having a frequency (eg, 6.78 MHz) corresponding to the resonance method or a frequency (100 to 205 kHz) corresponding to the induction method.
  • the second power source 411 may include, for example, an apparatus for providing direct current power and an inverter (not shown) for converting the direct current power into alternating current power.
  • the processor 410 may, for example, control the output of the second power source 411.
  • the second amplifying circuit 421 may amplify the received power and provide it to the coil 422.
  • the processor 410 may control the amplification gain of the received power.
  • the second amplifying circuit 421 may include at least one amplifier.
  • the coil 422 may generate a magnetic field using the received power.
  • an induced magnetic field that changes in size with time may be generated.
  • at least one capacitor may be connected to the coil 422, and the coil 422 and the capacitor may form a resonant circuit.
  • the resonance circuit may have a resonance frequency corresponding to the frequency of the resonance method or the induction method.
  • the second power source 411 may be designed to be merged with the first power source 401.
  • an induced electromotive force may be generated based on a magnetic field whose magnitude changes with time generated in the surroundings, and may be referred to as received power.
  • the AC power output from the coil 471 may be rectified by the second rectifier circuit 472.
  • the second converting circuit 473 may adjust the magnitude of the voltage or current of the rectified power and output it to the charger 454.
  • the electronic device 150 may further include a combiner for summing power from the first converting circuit 453 and the second converting circuit 473. In this case, the combined DC power in the combiner may be provided to the charger 454.
  • the second converting circuit 473 may directly charge the battery by adjusting the magnitude of the current or the magnitude of the voltage to be suitable for charging the battery. It may be.
  • the second sensing circuit 466 may sense a magnitude of a current, a magnitude of a voltage, or a magnitude of power at an output terminal of the second rectifying circuit 472.
  • the processor 455 may check the magnitude of the current sensed by the second sensing circuit 466, the magnitude of the voltage, or the magnitude of the power.
  • the processor 455 may provide the magnitude of the sensed current, the magnitude of the voltage, or the magnitude of the power to the communication circuit 460 as second received power related information.
  • the communication circuit 460 may transmit a communication signal including the second received power related information to the communication circuit 420 of the wireless power transmitter 100.
  • the communication circuit 460 may include and transmit the first received power related information and the second received power related information in one communication signal, or may include and transmit the first received power related information and the second received power related information in another communication signal.
  • the processor 410 may be configured to determine, based on the second received power related information included in the communication signal received by the communication circuit 420, the power transmitted through the coil 422 about the magnitude of the power received by the electronic device 150. Information can be judged.
  • the processor 410 may be configured such that the power transmitted through the antenna array 405 for power transmission is received by the electronic device 150 and the power transmitted through the coil 422.
  • the size received at 150 may be compared.
  • the processor 410 may choose to perform charging using a power transmission circuit corresponding to a larger size. That is, the processor 410 may select a charging method and transmit information about the selected charging method to the electronic device 150 through the communication circuit 420.
  • the processor 455 may select one of the power reception antenna 451 and the coil 471 as a power reception circuit to receive power based on the information received through the communication circuit 460.
  • the processor 455 may compare the first received power related information with the second received power related information and select a direct charging method.
  • the processor 455 may provide the communication circuit 460 with information about the selected charging method, and the communication circuit 460 may transmit a communication signal including the information about the selected charging method to the communication circuit 420. have.
  • the processor 410 may select either the power transmission antenna array 405 or the coil 422 as a power transmission circuit to transmit power by using the received charging information.
  • the memory 430 may be implemented in various forms, such as read only memory (ROM), random access memory (RAM), or flash memory, and the like.
  • the wireless power transmitter 100 as shown in FIG. 4A may also be referred to as a passive wireless power transmitter.
  • the processor 410 or the processor 455 may include a distance between the wireless power transmitter 100 and the electronic device 150, a charging scheme supported by the electronic device 150, and an electronic device (The charging method may be selected according to various information such as charging related information, wireless power transmission efficiency, wireless power transmission protocol, and obstacle location.
  • 4B is a block diagram of a wireless power transmission apparatus according to various embodiments of the present disclosure.
  • the apparatus for transmitting power wirelessly includes an MCU 461, a decoder 462, an I / O expander 463, and a digital-to-analog converter DAC. 464, a power amplifier (PA) 465, a phase shifter 466, a 6.78 MHz amplifier 467, an antenna array 470 for power transmission including a plurality of patch antennas, and It may include a coil 472.
  • PA power amplifier
  • the MCU 461 may be, for example, a type of processor 410 in FIG. 4A, and outputs address related information of the I / O expander 463 to the decoder 462. can do.
  • the MCU 461 may output address related information through a general-purpose input / output (GPIO).
  • the decoder 462 may decode the received address related information and control the I / O expander 463 for each address by using the address related information as a result of the decoding.
  • the MCU 461 may output the phase adjustment information to the I / O expander 463.
  • the MCU 461 may transmit phase adjustment information through, for example, a serial peripheral interface (SPI).
  • SPI serial peripheral interface
  • the I / O expander 463 may digitize the received phase adjustment information and output it to the DAC 464.
  • the I / O expander 463 may output digital phase adjustment information to the DAC 464 through a greater number of output channels than the input channel. For example, if there are 16 channels between the I / O expander 463 and the decoder 462, there may be 64 channels of the I / O expander 463 and the DAC 464.
  • the number of patch antennas included in the DAC 464, the phase shifter 466, and the power transmission antenna array 470 may be, for example, 64.
  • the I / O expander 463 may output, for example, digital phase adjustment information to the DAC 464 via GPIO.
  • the DAC 464 may convert the received digital phase adjustment information into an analog form and output the analog phase adjustment information to the phase shifter 466.
  • the phase shifter 466 may be, for example, a pin-diode based phase shifter.
  • the phase shifter 466 is an alternating current power according to an electromagnetic wave method from the RF PA 465, for example, an alternating current power of 5.8 GHz.
  • the phase shifter 466 may adjust the phase of each of the plurality of powers received through the plurality of channels by using the received phase adjustment information.
  • the phase-adjusted power may be output to each of the plurality of patch antennas of the power transmission antenna array 470.
  • Each of the plurality of patch antennas may receive each of the phase-adjusted powers to form sub-RF waves.
  • the wireless power transmitter of FIG. 4C may include an attenuator 407 and a third amplification circuit 409.
  • the AC power amplified by the first amplifier circuit 402 may be provided to the plurality of phase shifters 404 through the distribution circuit 403.
  • each of the plurality of attenuators 407 may be connected to each of the plurality of phase shifters 404.
  • the processor 410 may adjust at least one of the phase or amplitude of the AC power input to each of the plurality of patch antennas of the power transmission antenna array 405 to be beamformed at a specific point.
  • the processor 410 adjusts at least one of the degree of shifting of each of the plurality of phase shifters 404 or the amount of attenuation of each of the attenuators 407 to thereby adjust the phase or amplitude of AC power input to each of the plurality of patch antennas. At least one of can be adjusted.
  • Attenuator 407 may operate digitally.
  • An I / O expander (not shown) may be connected to the processor 410, and a phase shifter 404 and an attenuator 407 may be connected to the I / O expander (not shown). Accordingly, the signal from the processor 410 is extended to a plurality, and each of the extended signals may be transmitted to each of the plurality of phase shifters 404 or the plurality of attenuators 407.
  • the plurality of alternating current powers in which at least one of an amplitude or a phase is adjusted may be input to the third amplifying circuit 409, and the third amplifying circuit 409 may amplify the plurality of alternating current powers provided to the antenna array for power transmission.
  • Each of the plurality of patch antennas included in 405 may be transmitted.
  • the wireless power transmitter 100 as shown in FIG. 4C may be referred to as an active wireless power transmitter.
  • 4D is a block diagram of a wireless power transmission apparatus according to various embodiments of the present disclosure.
  • the wireless power transmitter includes a control circuit 483, a phase shifter 484, an RF PA 485, a DC-DC controller 486, a 6.78 MHz PA 487, and a power transmission.
  • a credit antenna array 490 and coil 492 may be included.
  • the control circuit 483 may include an MCU 481 and a control box 482.
  • the MCU 481 may determine at least one of phase adjustment information or amplitude adjustment information of an electrical signal input to each of the patch antennas included in the power transmission antenna array 490, which is output to the control box 482. can do.
  • the control box 482 may output a control signal for phase adjustment to the phase shifter 484, and may output a control signal for amplitude adjustment to the RF PA 485.
  • the MCU 481 may determine the size information of the power applied to the coil to adjust the size of the magnetic field 493 according to the resonance method, and may transmit it to the control box 482.
  • the control box 482 may transmit a coil applied power magnitude control signal to the DC-DC controller 486, and the DC-DC controller 486 may output power from the 6.78 MHz PA 487 using the control signal. You can control the size of. Accordingly, the size of the magnetic field 493 formed from the coil 492 can be controlled.
  • FIG. 5 is a flowchart illustrating a method of operating a wireless power transmitter according to various embodiments of the present disclosure.
  • the wireless power transmitter 100 may detect the electronic device 150.
  • the wireless power transmitter 100 may determine a distance from the wireless power transmitter 100 to the electronic device 150.
  • the apparatus 100 for transmitting power wirelessly may determine whether the distance exceeds a threshold.
  • the threshold value may be a numerical value determined through an experiment or the like as to transmit power in an electromagnetic wave method is more advantageous than in a resonance method or an induction method.
  • the distance when the efficiency when transmitting power in an electromagnetic wave manner is the same as the efficiency when transmitting power in a resonance manner or an induction manner may be set as a threshold.
  • the distance when the reception intensity when transmitting power by the electromagnetic wave method is the same as the reception intensity when transmitting power by the resonance method or the induction method may be set as a threshold.
  • the threshold may be set by various conditions.
  • the wireless power transmitter 100 may transmit power using a plurality of patch antennas. That is, the wireless power transmitter 100 may select the charging method as the electromagnetic wave method. If the distance is determined to be less than or equal to the threshold, in operation 509, the wireless power transmitter 100 may transmit power using a coil or a resonance circuit. That is, the apparatus 100 for transmitting power wirelessly may select a charging method as a resonance method or an induction method.
  • 6A is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.
  • the wireless power transmitter 100 may detect the electronic device 150.
  • the wireless power transmitter 100 may transmit test power according to a plurality of charging methods.
  • the wireless power transmitter 100 may transmit first test power through a plurality of patch antennas according to an electromagnetic wave method, and may simultaneously or sequentially through a coil (or a resonant circuit) according to a resonance method.
  • the second test power may be transmitted.
  • the electronic device 150 may receive power through a plurality of power receiving circuits.
  • the electronic device 101 may receive the first test power through the plurality of patch antennas and the second test power through the coil (or the resonant circuit).
  • the electronic device 150 may detect at least one of voltage, current, or power associated with the plurality of power receiving circuits.
  • the electronic device 150 may detect at least one of a voltage, a current, or a magnitude of power output from the plurality of power receiver circuits, for example, rectification connected to each of the plurality of power receiver circuits.
  • rectification connected to each of the plurality of power receiver circuits.
  • the electronic device 150 may select a charging method based on a comparison result of the detected numerical value.
  • the electronic device 150 may include, for example, a second rectifying circuit (eg, a magnitude of a voltage at an output terminal of a first rectifying circuit (eg, 452 in FIG. 4A) that rectifies the first test power). If it is determined that the voltage is greater than the voltage at the output terminal 472 of FIG. 4A, the electronic device 150 may select the electromagnetic wave method corresponding to the first test power as the charging method.
  • the electronic device 150 may include, for example, a second rectifying circuit whose magnitude of the voltage at the output terminal of the first rectifying circuit (for example, 452 of FIG. 4A) rectifies the second test power.
  • the electronic device 150 may select a resonance method or an induction method corresponding to the second test power as the charging method.
  • the charging method in which the power is received with the largest size is selected, which may be the charging method having the shortest charging time. That is, the wireless power transmitter 100 or the electronic device 150 may select a charging method that is expected to have the shortest charging time.
  • the electronic device 150 may select a charging method according to a threshold comparison method. If the magnitude of the voltage at the output of the first rectifier circuit (eg, 452 of FIG. 4A) exceeds a threshold, the electronic device 150 may select the electromagnetic wave method as the charging method. When the electronic device 150 determines that the magnitude of the voltage at the output terminal of the second rectifying circuit (eg, 472 of FIG. 4A) that rectifies the second test power is greater than the threshold, an induction scheme corresponding to the second test power. Alternatively, the resonance method may be selected as the charging method. The magnitude of the voltage at the output of the first rectifying circuit (eg, 452 of FIG.
  • the electronic device 150 may select two electromagnetic wave methods, and an induction method or a resonance method as the charging method.
  • the threshold corresponding to the voltage at the output of the first rectifying circuit (eg, 452 in FIG. 4A) and the threshold at the output of the second rectifying circuit (eg, 472 in FIG. 4A) may be determined. They may be the same or different. For example, the lowest voltage value for using the electromagnetic wave method and the lowest voltage value for using the induction method or the resonance method may be different from each other.
  • the electronic device 150 may transmit information about the selected charging method to the wireless power transmitter 100.
  • the network for transmitting the information may be different depending on the selected charging scheme.
  • the electronic device 150 may transmit information through hardware for out-band communication such as a BLE communication module.
  • the electronic device 150 may transmit information according to the on / off switch for the on / off keying modulation scheme disposed therein.
  • the wireless power transmitter 100 may select a power transmitter circuit to transmit power based on the received information.
  • the wireless power transmitter 100 may transmit energy using the selected power transmitter circuit.
  • the electronic device 150 may receive energy using a power receiving circuit corresponding to the selected charging method.
  • 6B is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure. Since operations 601 to 607 have been described with reference to FIG. 6A, descriptions thereof will be omitted.
  • the electronic device 101 may include the detected value in a communication signal and transmit the same to the wireless power transmitter 100.
  • the apparatus 100 for transmitting power wirelessly may select a charging method based on a result of comparing the detected numerical value. As described in FIG. 6A, for example, the magnitude of the voltage at the output terminal of the first rectifying circuit (for example, 452 in FIG. 4A) for rectifying the first test power is equal to the second rectifying circuit (for example, for rectifying the second test power). If it is determined that the voltage is greater than the magnitude of the voltage at the output terminal 472 of FIG. 4A, the wireless power transmitter 100 may select an electromagnetic wave method corresponding to the first test power as the charging method.
  • the wireless power transmission apparatus 100 may select a power transmission circuit to transmit power corresponding to the selected charging scheme. For example, when the electromagnetic wave method is selected as the charging method, the wireless power transmitter 100 may select a plurality of patch antennas as a power transmission circuit for transmitting power. In operation 627, the apparatus 100 for transmitting power wirelessly may transmit information about the selected charging scheme. In operation 629, the wireless power transmitter 100 may transmit energy using the selected power transmitter circuit. In operation 631, the electronic device 150 may receive energy using a power receiving circuit corresponding to the selected charging scheme.
  • the charging method may be selected by the wireless power transmitter 100 or the electronic device 150 that receives power according to various embodiments.
  • FIG. 7A is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.
  • the electronic device 150 may transmit information on a charging method supported by the electronic device 150.
  • the electronic device 150 may include information about a charging scheme in an advertisement signal defined in the BLE standard and transmit the information.
  • the electronic device 150 may code and transmit information about a charging method.
  • the electronic device 150 may include information on a charging scheme in another signal defined in the BLE standard and transmit the information.
  • the electronic device 150 may include information about a charging method in a signal defined in various communication methods and transmit the same.
  • FIG. 7B is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure. The embodiment of FIG. 7B will be described in more detail with reference to FIG. 7C.
  • 7C is a diagram illustrating a user interface for inputting a charging method selection of an electronic device according to various embodiments of the present disclosure.
  • the electronic device 150 may transmit information about the selected charging method to the wireless power transmitter 100.
  • the wireless power transmitter 100 may charge the electronic device 150 using a plurality of patch antennas based on the received information, or may charge the electronic device 150 using a coil for short-range charging of the electronic device 150. You can choose whether or not. For example, when the user selects near charging, the wireless power transmitter 100 may select a resonance method or an induction method as a charging method.
  • the wireless power transmitter 100 may transmit energy using the selected power transmitter circuit.
  • the electronic device 150 may perform charging by using energy from the wireless power transmission device 150.
  • 8A is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure.
  • the wireless power transmitter 100 may detect an electronic device.
  • the apparatus 100 for transmitting power wirelessly may transmit test power simultaneously or sequentially according to a plurality of charging schemes.
  • the wireless power transmitter may transmit the first test power by the electromagnetic wave method and the second test power by the resonance method.
  • the electronic device 150 may receive power through a plurality of power receiving circuits.
  • the electronic device 150 may detect at least one of magnitudes of voltages, currents, or powers associated with the plurality of power receiving circuits.
  • the apparatus 100 for transmitting power wirelessly may transmit information on energy transmission strength.
  • the apparatus 100 for transmitting power wirelessly transmits information on the transmission strength of the first test power and information on the transmission strength of the second test power to the electronic device 150 as one communication signal or a plurality of communication signals. I can send it.
  • the electronic device 150 may determine the efficiency of each of the plurality of charging methods by using the detected numerical value and the information on the energy transmission intensity.
  • the electronic device 150 may measure the reception intensity of energy and may determine the transmission efficiency using the energy transmission intensity and the energy reception intensity.
  • the electronic device 150 may select a charging method based on the determined efficiency. For example, the electronic device 150 may select a charging method having a higher efficiency.
  • the electronic device 150 may transmit information about the selected charging method to the wireless power transmitter 100.
  • the apparatus 100 for transmitting power wirelessly may select a power transmission circuit to transmit power based on the received information. That is, the apparatus 100 for transmitting power wirelessly may select a charging method based on the received information.
  • the apparatus 100 for transmitting power wirelessly may transmit energy using the selected power transmission circuit.
  • the electronic device 150 may receive energy by using a power receiving circuit corresponding to the selected charging method. As described above, power may be transmitted at an optimum efficiency, and thus power saving management may be possible.
  • 8B is a flowchart illustrating a method of operating a wireless power transmitter and an electronic device according to various embodiments of the present disclosure. Since operations 801 to 807 have been described with reference to FIG. 8A, descriptions thereof will be omitted.
  • the electronic device 150 may transmit a detection result.
  • the electronic device 150 may detect a reception strength of energy and transmit the reception strength of power to the wireless power transmission apparatus 100.
  • the apparatus 100 for transmitting power wirelessly may determine the efficiency of each of the plurality of charging schemes using the energy transmission strength and the received detection result. Alternatively, the wireless power transmitter 100 may determine the transmission efficiency based on the energy transmission intensity and the reception intensity of the energy in the electronic device 150.
  • the apparatus 100 for transmitting power wirelessly may select a charging method based on the determined efficiency. For example, the apparatus 100 for transmitting power wirelessly may select a charging method having higher efficiency.
  • the wireless power transmitter 100 may transmit information about the selected charging method.
  • the apparatus 100 for transmitting power wirelessly may select a power transmission circuit to transmit power based on the received information.
  • the wireless power transmission apparatus 100 may transmit energy using the selected power transmission circuit.
  • the electronic device 150 may receive energy by using a power receiving circuit corresponding to the selected charging method.
  • the charging method may be selected by the wireless power transmitter 100 or the electronic device 150 receiving power based on a transmission efficiency.
  • FIG. 9 is a flowchart illustrating a method of operating a wireless power transmitter according to various embodiments of the present disclosure.
  • the wireless power transmission device 100 may detect the electronic device 150.
  • the wireless power transmitter 100 may include at least one of a distance between the wireless power transmitter 100 and the electronic device 150, a magnitude of energy received from the electronic device 150, or an efficiency. Based on one, the first charging method may be selected from among the plurality of charging methods.
  • the apparatus 100 for transmitting power wirelessly may determine whether the wireless power transmission apparatus violates an agreement relating to an electric field or a magnetic field.
  • organizations such as the Federal Communications Commission (FCC) have distributed protocols related to electromagnetic or electromagnetic interference (EMI), and the wireless power transmitter 100 must comply with the related protocols.
  • wireless charging standards eg, WPC standard or A4WP standard
  • WPC standard or A4WP standard also regulate the maximum transmission amount or the minimum transmission amount, and the wireless power transmitter 100 must comply with the regulations. Accordingly, the wireless power transmitter 100 may determine whether the wireless power transmission apparatus violates a related protocol when transmitting according to the determined first charging scheme.
  • Parameters for the relevant protocol and conditions for the numerical value of the parameter may be stored in advance in the wireless power transmission apparatus 100, and the wireless power transmission apparatus 100 detects a numerical value corresponding to the previously stored parameter, and detects the result. By judging whether or not satisfies a pre-stored condition, it is possible to determine whether or not to comply with the protocol.
  • the wireless power transmitter 100 may perform charging according to the selected first charging method. If it is determined that the protocol is violated, in operation 909, the wireless power transmitter 100 may change from the first charging method to the second charging method and perform charging according to the second charging method.
  • the apparatus 100 for transmitting power may determine to perform charging using both the first charging method and the second charging method. For example, when the electronic device 150 requires rapid charging, the wireless power transmitter 100 may transmit power to the electronic device 150 using a plurality of charging methods simultaneously. When it is determined that the simultaneous charging condition for the electronic device 150 is satisfied, the wireless power transmitter 100 may determine to perform charging using both the first charging method and the second charging method. Even when simultaneously transmitting power by a plurality of charging methods, the wireless power transmitter 100 may determine whether a violation of a related protocol is found. If it is determined that it is in violation of a related protocol, at least one of a plurality of charging methods may be charged. The power transmission using the scheme may be stopped, and the power may be transmitted using the remaining charging scheme.
  • 10A is a flowchart illustrating a method of operating a wireless power transmitter according to various embodiments of the present disclosure. 10A will be described in more detail with reference to FIG. 10B. 10B is a conceptual diagram illustrating an arrangement of a wireless power transmitter and a living body according to various embodiments of the present disclosure.
  • the wireless power transmitter 100 may detect the electronic device 150. In operation 1003, the wireless power transmitter 100 may be based on at least one of a distance between the wireless power transmitter 100 and the electronic device 150, a magnitude of energy received from the electronic device 150, or an efficiency.
  • the first charging method may be selected among the plurality of charging methods.
  • the wireless power transmitter 100 may determine whether it affects a living body when charging is performed by the first charging method. For example, as shown in FIG. 10B, the living body 1030 may be located around the wireless power transmitter 100.
  • the apparatus 100 for transmitting power wirelessly may determine the location of the living body 1030 according to various methods such as vision recognition or radar recognition. If it is determined that the living body is not affected, in operation 1007, the wireless power transmitter 100 may perform charging according to the first charging method. If determined to affect the living body, in operation 1009, the wireless power transmitter 100 may perform charging according to the second charging method.
  • the apparatus 100 for transmitting power wirelessly may be located near the TV 1011.
  • the wireless power transmitter 100 charges the electronic device 150 through a resonance method, and moves out of the first range 1022 to the second range 1023.
  • the electronic device 150 may be set to charge the electronic device 150 through an electromagnetic wave method. Since the electronic device 150 is determined to be included in the first range 1022, the wireless power transmitter 100 may form a magnetic field 1021 based on a resonance method. However, when it is determined that the magnetic field 1021 affects the living body 1030, the wireless power transmitter 100 may determine to charge the electronic device 150 through an electromagnetic wave method as shown in the right side of FIG.
  • the apparatus 100 for transmitting power wirelessly may form an RF wave 1024, and the RF wave 1024 may be beam-formed at a location of the electronic device 150, and thus may not affect the living body 1030.
  • the wireless power transmission apparatus 100 may select the charging method by the electromagnetic wave method and change the charging method by the resonance method.
  • the apparatus 100 for transmitting power wirelessly may detect that a living body is located in a direction in which a beamformed RF wave is formed. In this case, the apparatus 100 for transmitting power wirelessly may transmit power to the electronic device 150 by changing the charging method in a resonance manner.
  • the wireless power transmission apparatus or the electronic device does not change the selected charging method if it is determined that the specific absorption rate (SAR) related protocol suggested by the FCC body is not violated even if a living body is detected. It may transmit power.
  • SAR specific absorption rate
  • FIG. 11 is a flowchart illustrating a method of operating a wireless power transmitter or an electronic device according to various embodiments of the present disclosure. The embodiment of FIG. 11 will be described in more detail with reference to FIG. 12.
  • 12 is a view illustrating a user interface for inducing a change in a charging scheme of a wireless power transmitter or an electronic device according to various embodiments of the present disclosure.
  • the wireless power transmitter 100 or the electronic device 150 may provide a UI for switching to the second charging method when the battery remaining amount of the electronic device 150 is less than the reference value.
  • the wireless power transmitter 100 or the electronic device 150 may provide a UI for switching to the second charging method.
  • the wireless power transmitter 100 or the electronic device 150 switches to the second charging method when the amount of power that can be charged by the second charging method in the wireless power transmitter 100 exceeds a threshold. It can provide a UI for. For example, if the wireless power transmitter 100 charges another electronic device using the second charging method, and the other electronic device is fully charged, the wireless power transmitter 100 may provide a UI for switching to the second charging method.
  • the apparatus 100 for transmitting power wirelessly may transmit data 1211 to the TV 1210.
  • the apparatus 100 for transmitting power wirelessly may transmit data 1211 including a command to display the UI 1232 to induce a switch to the second charging scheme to the TV 1210.
  • the wireless power transmitter 100 may display a UI for inducing a switch to the second charging scheme.
  • the apparatus 100 for transmitting power wirelessly may transmit data 1200 including a command to display the UI 1231 for inducing a switch to the second charging scheme to the electronic device 150.
  • the “one-connect box” may be a model name of a device including the wireless power transmitter 100, and the UI 1231 may be configured with a user-friendly name.
  • the electronic device 150 may use the second charging method when the transmission efficiency by the first charging method is less than the threshold or when the intensity of power received by the electronic device 150 by the first charging method is less than the threshold.
  • the UI 1231 may be displayed for switching.
  • the apparatus 100 for transmitting power wirelessly may provide a UI that induces switching to the second charging method through various methods such as sound, vibration, and LED blinking as well as a screen.
  • the wireless power transmitter 100 or the electronic device 150 may determine whether a charging method change condition is satisfied.
  • the condition for changing the charging method is that the distance between the wireless power transmitter 100 and the electronic device 150 is less than or equal to the threshold and exceeds the threshold, or the wireless power transmitter 100 and the electronic device 150 are above the threshold. ) May be above the threshold and then decrease below the threshold.
  • the user may check the UI and move the electronic device 150 to the wireless power transmitter 100. Accordingly, the electronic device 150 may be located relatively close to the wireless power transmission device 100.
  • the wireless power transmitter 100 or the electronic device 150 may determine that the distance between the wireless power transmitter 100 and the electronic device 150 is equal to or less than a threshold.
  • the wireless power transmitter 100 or the electronic device 150 may perform charging according to the second charging method.
  • FIG. 13 is a flowchart illustrating a method of operating a wireless power transmitter or an electronic device according to various embodiments of the present disclosure. The embodiment of FIG. 13 will be described in more detail with reference to FIG. 14. 14 illustrates information associated with a charging scheme displayed on an electronic device according to various embodiments of the present disclosure.
  • the wireless power transmitter 100 or the electronic device 150 may perform charging according to the first charging method.
  • the wireless power transmitter 100 may transmit power through a plurality of patch antennas according to the electromagnetic wave method, and the electronic device 150 may receive power through the plurality of patch antennas according to the electromagnetic wave method. have.
  • the wireless power transmitter 100 or the electronic device 150 may display information associated with the first charging scheme and information associated with the second charging scheme. For example, as shown in FIG. 14, the electronic device 150 may display information 1401 and 1403 associated with charging methods.
  • the information 1401 associated with the first charging method may include identification information indicating an electromagnetic wave method (for example, remote charging), information indicating whether the battery is being charged according to the electromagnetic wave method (for example, charging), information indicating a charging rate (for example, 83), and the like. %), Expected buffer time (e.g., complete charging after about 59 minutes), and the like.
  • the information 1402 associated with the second charging method may include identification information indicating a resonance method (eg, resonant fast charging), information indicating whether the resonance type charging is possible (eg, chargeable), and an estimated time for buffering (eg, after about 9 minutes). Complete charging), and the like.
  • the wireless power transmission apparatus 100 may also control to display information related to a charging scheme directly or through another electronic device such as a TV. Alternatively, the magnitude, sensitivity, etc. of the charging power may also be displayed.
  • the wireless power transmitter 100 or the electronic device 150 may determine whether a wireless charging method change command is input.
  • the user may specify information 1402 associated with the second charging scheme.
  • the electronic device 150 may preset the information associated with the charging scheme to be changed by changing the charging scheme in the designated manner. Accordingly, in response to designation of the information 1402 associated with the second charging method, the electronic device 150 may change the charging method from the first charging method to the second charging method. In operation 1307, the electronic device 150 may perform charging according to the second charging method.
  • the electronic device 150 may display the information as shown in FIG. 14 as an animation at the start of charging or may display the information as shown in the status bar.
  • the electronic device 150 may display related information even while executing another application.
  • 15 is a flowchart illustrating a method of operating a wireless power transmitter or an electronic device according to various embodiments of the present disclosure.
  • the wireless power transmitter 100 or the electronic device 150 may perform charging according to the first charging method.
  • the wireless power transmitter 100 may transmit power through a plurality of patch antennas according to the electromagnetic wave method
  • the electronic device 150 may receive power through the plurality of patch antennas according to the electromagnetic wave method.
  • the wireless power transmitter 100 or the electronic device 150 may include a distance between the wireless power transmitter 100 and the electronic device 150, a magnitude of energy received from the electronic device 150, an efficiency, At least one of violating protocols or affecting the living body can be monitored.
  • 16A to 16C are conceptual views illustrating a charging method change process according to various embodiments of the present disclosure.
  • the wireless power transmitter 100 is set to charge according to a resonance method when the electronic device 150 is located in the first range 1600, and the electronic device 150 outside the first range 1600. When is located may be set to charge according to the electromagnetic wave method.
  • the wireless power transmission apparatus 100 may determine that the electronic device 150 is located within the first range 1600 at the first time point.
  • the wireless power transmitter 100 may transmit power to the electronic device 150 by forming a magnetic field 1611 through a coil (or a resonant circuit) according to a resonance method.
  • the wireless power transmitter 100 may monitor a distance between the wireless power transmitter 100 and the electronic device 150.
  • the electronic device 150 may move 1601 out of the first range 600.
  • the user may move with the electronic device 150 out of the first range 600.
  • the wireless power transmitter 100 may determine that the electronic device 150 is located outside the first range 1600 by increasing the distance between the wireless power transmitter 100 and the electronic device 150. Accordingly, the wireless power transmitter 100 may determine that the electronic device 150 is charged by the electromagnetic wave method.
  • the apparatus 100 for transmitting power wirelessly may transmit power to the electronic device 150 by forming an RF wave 1612 through a plurality of patch antennas corresponding to electromagnetic waves.
  • the wireless power transmitter 100 is set to charge according to a resonance method when the electronic device 150 is located in the first range 1600, and the electronic device 150 outside the first range 1600. When is located may be set to charge according to the electromagnetic wave method.
  • the wireless power transmitter 100 may identify another electronic device 1620 to perform charging. As the other electronic device 1620 is included in the first range 1600, the wireless power transmitter 100 may charge the other electronic device 1620 in a resonant manner.
  • the apparatus 100 for transmitting power wirelessly may transmit power to another electronic device 1620 by forming a magnetic field 1621 through a coil (or a resonant circuit).
  • the electronic device 150 may be disposed within the first range 1600.
  • the wireless power transmitter 100 may determine that the electronic device 150 is disposed within the first range 1600, and thus may select the resonance method as the charging method of the electronic device 150.
  • the apparatus 100 for transmitting power wirelessly may determine whether a protocol is violated when charging in a resonance manner. For example, the standard of the resonance method may suggest a minimum value of the charging power to be received by the wireless power receiver.
  • the wireless power transmitter 100 may determine that power less than the minimum value of the power suggested to the electronic device 150 is transmitted. have. Accordingly, the wireless power transmission apparatus 100 may select to charge the electronic device 150 by an electromagnetic wave method.
  • the apparatus 100 for transmitting power wirelessly may transmit power to the electronic device 150 by forming an RF wave 1622 through a plurality of patch antennas.
  • the other electronic device 1620 may move outside the first range 1600.
  • the apparatus 100 for transmitting power wirelessly may monitor whether a violation of protocol is observed. For example, when the wireless power transmitter 100 charges the electronic device 150 alone, the wireless power transmitter 100 may determine that power equal to or greater than the minimum value of the suggested power can be transmitted to the electronic device 150.
  • the apparatus 100 for transmitting power wirelessly may charge the electronic device 150 in a resonance manner based on the fact that the protocol does not violate even when charging is performed in a resonance manner.
  • the wireless power transmitter 100 may transmit power to the electronic device 150 by forming a magnetic field 1621 through a coil (or a resonant circuit).
  • the wireless power transmitter 100 uses the resonance method at the second time point, based on the transmission efficiency of the power transmitted from the wireless power transmitter 100 to the electronic device 150 being less than or equal to the threshold value. It can be charged according to the electromagnetic wave method.
  • the wireless power transmitter 100 may monitor a transmission efficiency corresponding to the resonance method. For example, the wireless power transmitter 100 periodically performs charging according to a resonance method, and transmit efficiency according to the resonance method based on the received strength or the magnitude of the detected current, voltage, or power from the electronic device 100. You can also monitor At a third time point when the other electronic device 1620 disappears, the wireless power transmitter 100 may determine that the transmission efficiency of power transmitted from the wireless power transmitter 100 to the electronic device 150 exceeds a threshold value according to a resonance method. Can be. The wireless power transmitter 100 may charge the electronic device 150 by changing the charging method to a resonance method and forming a magnetic field 1621 in response thereto.
  • the wireless power transmitter 100 is set to charge according to a resonance method when the electronic device 150 is located in the first range 1600, and the electronic device 150 outside the first range 1600. When is located may be set to charge according to the electromagnetic wave method.
  • the electronic device 150 may be disposed in the first range 1600.
  • the living body 1632 may be located within the first range 1600.
  • the wireless power transmission apparatus 100 may select the charging method as the resonance method according to the arrangement of the electronic device 150 in the first range 1600.
  • the wireless power transmitter 100 may determine that the magnetic field affects the living body 1632 when the magnetic field is formed by the resonance method.
  • the wireless power transmitter 100 may select the charging method as the electromagnetic wave method so as not to affect the living body 1632.
  • the apparatus 100 for transmitting power wirelessly may beamform the RF wave 1631 at a location of the electronic device 150, and the living body 1632 may not be affected by a magnetic field or an electric field.
  • the apparatus 100 for transmitting power wirelessly may monitor whether a living body is affected. At a second time point, the living body 1632 may move out of the first range 1600. For example, the apparatus 100 for transmitting power wirelessly may determine that the living body 1632 moves out of the first range 1600 at a second time point according to vision recognition or radar recognition, and the apparatus 100 for transmitting power wirelessly. There is no limitation on how to determine whether the living body 1632 moves.
  • the apparatus 100 for transmitting power wirelessly may confirm that the magnetic field is not affected even when the magnetic field is formed by the resonance method, and the resonance method may be selected as the charging method.
  • the wireless power transmitter 100 may transmit power to the electronic device 150 by forming a magnetic field 1633 according to a resonance method.
  • the wireless power transmission apparatus 100 has been described in connection with FIGS. 16A-16C as changing the monitoring and charging scheme, this is merely illustrative and, as described above, the electronic device 100 may change the monitoring and charging scheme. It can also be done.
  • 17 is a flowchart illustrating an operation method of a wireless power transmitter and a plurality of electronic devices according to various embodiments of the present disclosure.
  • the wireless power transmitter 100 may detect the first electronic device 1701.
  • the wireless power transmitter 100 may determine to charge the first electronic device according to the first charging method.
  • the wireless power transmitter 100 may include a distance between the wireless power transmitter 100 and the first electronic device 1701, and the magnitude, efficiency, and protocol of the energy received by the first electronic device 1701.
  • the first charging method may be selected based on at least one of violating or affecting the living body.
  • the apparatus 100 for transmitting power wirelessly may transmit energy using a power transmission circuit corresponding to the first charging scheme.
  • the wireless power transmitter 100 may detect the second electronic device 1702.
  • the wireless power transmitter 100 may select one of the first charging method and the second charging method in consideration of charging of the first electronic device. For example, the wireless power transmitter 100 violates the distance between the wireless power transmitter 100 and the second electronic device 1702, the amount of energy received from the second electronic device 1702, the efficiency, and the protocol.
  • the charging method of the second electronic device 1702 may be selected as the first charging method based on at least one of whether or not the biological influence. When the wireless power transmitter 100 charges both the first electronic device 1701 and the second electronic device 1702 according to the first charging method, it may determine that sufficient power cannot be transmitted to both electronic devices. Can be.
  • the wireless power transmitter 100 may select the charging method of the second electronic device 1702 as the second charging method.
  • the wireless power transmitter 100 may transmit energy using a power transmitter circuit corresponding to the selected charging scheme.
  • the apparatus 100 for transmitting power wirelessly may allocate an identifier ID for each of the electronic devices 1701 and 1702, and manage a charging method, a charging time, a charging amount, and the like for each identifier.
  • the apparatus 100 for transmitting power wirelessly may perform identifier recognition according to a received command.
  • FIG. 18 is a flowchart illustrating a method of operating a wireless power transmitter according to various embodiments of the present disclosure.
  • the wireless power transmitter 100 may simultaneously charge the first electronic device and the second electronic device.
  • the wireless power transmitter 100 may detect completion of charging of the first electronic device or the number of times of the first electronic device.
  • the wireless power transmitter 100 may determine the charging method of the second electronic device again. For example, the wireless power transmitter 100 may charge the first electronic device using a first charging method and charge the second electronic device using a second charging method.
  • the wireless power transmission apparatus 100 may detect the number of times of the first electronic device, and determine whether to charge the second electronic device according to the first charging method or the second charging method.
  • the wireless power transmitter 100 may determine that it is more efficient to charge the second electronic device according to the first charging method, and accordingly, the charging method of the second electronic device may be determined as the first charging method. Can be changed.
  • the apparatus 100 for transmitting power wirelessly may transmit energy using a power transmission circuit corresponding to the determined charging method.
  • the apparatus 100 for transmitting power wirelessly may perform auxiliary charging when the first electronic device is fully charged.
  • the apparatus 100 for transmitting power wirelessly may transmit supplemental power smaller than the size of the existing charging power to the first electronic device, thereby enabling the first electronic device to remain in a buffer state without being discharged again after the charging is completed. It may be.
  • 19 is a flowchart illustrating a method of operating a wireless power transmitter according to various embodiments of the present disclosure.
  • the wireless power transmitter 100 may detect the electronic device 150.
  • the apparatus 100 for transmitting power wirelessly may determine the efficiency according to the first charging scheme and the efficiency according to the second charging scheme.
  • the apparatus 100 for transmitting power wirelessly may determine whether the efficiency of the first charging scheme exceeds the threshold efficiency. If it is determined that the efficiency of the first charging scheme exceeds the threshold efficiency, in operation 1907, the wireless power transmitter 100 may determine whether the efficiency of the second charging scheme exceeds the threshold efficiency. If it is determined that the efficiency of the first charging method exceeds the threshold efficiency and the efficiency of the second charging method exceeds the threshold efficiency, in operation 1909, the wireless power transmitter 100 may determine the first charging method and the second charging method.
  • the wireless power transmitter 100 may charge the electronic device 150 according to the first charging method. It can be judged that. If it is determined in operation 1905 that the efficiency of the first charging scheme is less than or equal to the threshold efficiency, in operation 1913, the wireless power transmitter 100 may determine whether the efficiency of the second charging scheme exceeds the threshold efficiency. If the first charging efficiency is less than or equal to the threshold efficiency and the second charging efficiency exceeds the critical efficiency, in operation 1915, the wireless power transmitter 100 may determine that the electronic device is charged according to the second charging method. .
  • the wireless power transmitter 100 compares the efficiency of the first charging method with the efficiency of the second charging method in operation 1917. It may be determined that the electronic device 150 is charged according to a higher efficiency charging method. In operation 1919, the wireless power transmitter 100 may transmit energy using a power transmission circuit corresponding to the determined charging scheme. For example, when it is determined to perform charging using both the first charging method and the second charging method, the wireless power transmitter 100 forms an RF wave using a plurality of patch antennas, and forms a coil (or, Power can be transmitted to the electronic device 150 by forming a magnetic field using a resonance circuit.
  • 20A is a conceptual diagram illustrating a charging of an electronic device of a wireless power transmitter according to various embodiments of the present disclosure.
  • the apparatus 100 for transmitting power wirelessly is set to perform charging according to a resonance method with respect to an electronic device included in the first range 2000, and according to an electromagnetic wave method with respect to an electronic device located outside the first range 200. It can be set to perform charging.
  • the wireless power transmitter 100 may transmit power to the TV 2002 by forming the magnetic field 2011 in accordance with a resonance method.
  • the wireless power transmitter 100 may charge the first electronic device 2001 using both a resonance method and an electromagnetic wave method.
  • the wireless power transmitter 100 may transmit power to the first electronic device 2001 by forming a magnetic field 2012 in accordance with a resonance method and forming an RF wave 2013 in accordance with an electromagnetic wave method.
  • the apparatus 100 for transmitting power may transmit power to the second electronic device 2003 by forming an RF wave 2014 according to an electromagnetic wave method.
  • the wireless power transmitter 100 may form an RF wave 2013 by performing beamforming at a location of the first electronic device 2001, and perform RF beamforming at a location of the second electronic device 2003.
  • Wave 2014 may be formed.
  • 20B and 20C illustrate conceptual diagrams for describing RF wave formation for a plurality of positions according to various embodiments of the present disclosure.
  • the apparatus 100 for transmitting power wirelessly may determine positions of a plurality of electronic devices 2001 and 2003. For example, the wireless power transmitter 100 determines the direction of the electronic device 2001 based on the communication signal from the first electronic device 2001, and based on the communication signal from the second electronic device 2003. The direction of the electronic device 2003 can be determined.
  • the apparatus 100 for transmitting power wirelessly may determine patch antenna groups 2221 and 2222 for charging each of the plurality of electronic devices 2001 and 2003.
  • the wireless power transmitter 100 may wirelessly charge the plurality of electronic devices 2001 and 2003 using the patch antenna groups 2221 and 2222.
  • the apparatus 100 for transmitting power wirelessly may perform wireless charging using the patch antenna group 2221.
  • the apparatus 100 for transmitting power wirelessly may perform wireless charging using the patch antenna group 2222.
  • the wireless power transmitter 100 may select patch antenna groups 2221 and 2222 according to directions of the plurality of electronic devices 2001 and 2003, respectively.
  • the patch antenna group 2221 may be selected on the left side, and the wireless power may be selected.
  • the patch antenna group 2222 that is disposed on the right side may be selected.
  • the patch antenna group 2221 may form an RF wave 2013 for charging the first electronic device 2001
  • the patch antenna group 2222 may form an RF wave for charging the second electronic device 2003. 2014).
  • the wireless power transmitter 100 may select the number of patch antennas included in the patch antenna group based on the rated power of each of the plurality of electronic devices 2001 and 2003. For example, a relatively large number of patch antennas can be allocated to an electronic device having a relatively high rated power. As described above, the plurality of electronic devices 2001 and 2003 may be simultaneously charged.
  • the apparatus 100 for transmitting power may determine directions of the plurality of electronic devices 2001 and 2003.
  • the wireless power transmitter 100 may distribute a charging time for charging each of the plurality of electronic devices 2001 and 2003.
  • the wireless power transmitter 100 may wirelessly charge the plurality of electronic devices 2001 and 2003 based on the distributed charging time. For example, during the first time t1, each of the patch antennas 2223 may be controlled to form a sub-RF wave to form an RF wave 2013 for charging the first electronic device 2001.
  • the RF wave 2014 for charging the second electronic device 2003 may be formed using the entire patch antenna 2223 for two hours t2.
  • the wireless power transmission apparatus 100 may form an RF wave by alternating a plurality of electronic devices 2001 and 2003.
  • 21 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure.
  • the electronic device 150 may detect the wireless power transmission device 100.
  • the electronic device 150 may receive a quick charge command.
  • the electronic device 150 may display a user interface for inputting a quick charge command and may receive a quick charge command through the user interface.
  • the electronic device 150 may start the fast charging correspondingly.
  • the electronic device 150 may transmit a quick charge request.
  • the wireless power transmitter 100 may determine that the electronic device 150 is charged according to a plurality of charging methods in response to the received fast charge request.
  • the wireless power transmission apparatus 100 may transmit energy through a plurality of power transmission circuits corresponding to a plurality of charging schemes.
  • the electronic device 150 may receive energy through a plurality of power receiving circuits corresponding to a plurality of charging schemes. Accordingly, the electronic device 150 may receive a relatively large amount of power.
  • 22A to 22F illustrate conceptual diagrams for describing an arrangement of a wireless power transmission apparatus according to various embodiments of the present disclosure.
  • the apparatus 100 for transmitting power wirelessly may be included in the data transmitting and receiving apparatus 2200.
  • the data transmitting and receiving device 2200 may transmit and receive data to and from the TV 2201 wirelessly.
  • the data transmission / reception apparatus 2200 may transmit at least one of a video signal or an audio signal received from the outside to the TV 2201 wirelessly.
  • the apparatus 100 for transmitting power wirelessly may have a shape extending left and right according to the shape of the data transmitting and receiving device 2200.
  • the wireless power transmitter 100 included in the data transmission / reception apparatus 2200 may wirelessly transmit power to the TV 2201. Accordingly, the TV 2201 may wirelessly receive at least one of power and a video signal or an audio signal without a wired connection.
  • the wireless power transmitter 100 can transmit power to the TV 2201 by forming the magnetic fields 2211, 2212, and 2213 according to a resonance method.
  • the TV 2201 may include a wireless power receiver 2203, and the wireless power receiver 2203 may convert, for example, magnetic fields 2211, 2212, and 2213 generated in the vicinity into current, voltage, or power. Can be.
  • the wireless power receiver 2203 may have a shape extended left and right to correspond to the shape of the wireless power transmitter 100.
  • the apparatus 100 for transmitting power wirelessly may perform charging according to an electromagnetic wave scheme, and may form the RF wave 2214 with respect to a location of the electronic device 2202 which is located at a relatively long distance. Can be.
  • the wireless power transmitter 100 may charge the electronic device 2202 by forming a magnetic field.
  • the wireless power transmission apparatus 100 may be included in the audio device 2214.
  • the apparatus 100 for transmitting power wirelessly may have a shape extending up and down according to the shape of the audio device 2214.
  • the wireless power receiver 2205 included in the TV 2201 may have a shape that extends up and down according to the shape of the wireless power transmitter 100.
  • the wireless power transmitter 100 may transmit power to the wireless power receiver 2205 by forming the magnetic field 2215.
  • the apparatus 100 for transmitting power wirelessly may transmit power to the electronic device 2202 by forming an RF wave 2216.
  • the apparatus 100 for transmitting power wirelessly may include a power transmission circuit 2231 according to a resonance method or an induction method, a control circuit 2232, and a power transmission circuit 2233 according to an electromagnetic wave method.
  • the power transmission circuit 2231 may include, for example, at least one of a power source, amplifying circuit, coil, or capacitor that provides power having a frequency of 100 to 205 kHz, or 6.78 MHz. have.
  • the power transmission circuit 2233 may include, for example, at least one of a power source, an amplifier circuit, a distribution circuit, a phase shifter, or a patch antenna array that provides power having a frequency of 5.8 GHz.
  • the power transmission circuit 2233 may be arranged to be formed toward the RF wave 2234 in a relatively upward direction.
  • the wireless power transmitter 100 is disposed on the floor, for example, the electronic device 150 is more likely to be positioned above the wireless power transmitter 100. Accordingly, the patch antenna array may be inclined with respect to the bottom surface so that the RF wave 2234 may face upward.
  • the control circuit 2232 may include, for example, a communication circuit or a processor, and may perform communication with the electronic device 150 or control power transmission of the power transmission circuit 2231 or the power transmission circuit 2233. Can be. Referring to FIG. 22D, the power transmission circuit 2233 may be disposed to be substantially perpendicular to the floor.
  • the RF wave 2234 may be formed parallel to the floor.
  • the arrangement direction of the patch antenna array of the electromagnetic wave method may vary according to the arrangement position of the wireless power transmitter 100.
  • the wireless power transmission apparatus 100 may include an actuator for mechanically adjusting an arrangement direction of a patch antenna array.
  • the apparatus 100 for transmitting power wirelessly may mechanically change the arrangement direction of the patch antenna array according to the position or direction in which the electronic device is located.
  • the TV 2240 may include a display 2241 and a main body 2242.
  • the body 2242 may include a power transmission circuit capable of generating a magnetic field 2245 and a power transmission circuit capable of generating an RF wave 2246.
  • the electronic devices 2243 and 2244 may be charged using the magnetic field 2245 and the RF wave 2246 formed from the main body 2242.
  • the TV 2240 may be supported by the support structure 2250.
  • the wireless power transmission apparatus 100 disposed in the support structure 2250 may include a power transmission circuit that generates a magnetic field 2247 and a power transmission circuit that forms an RF wave 2248.
  • the electronic devices 2243 and 2244 may be charged using the magnetic field 2247 and the RF wave 2248 formed from the wireless power transmitter 100.
  • the wireless power transmitter 100 may be disposed on a desk or under a desk, and may be placed on various desks such as a smartphone, a keyboard, and a mouse.
  • Electronic devices located at may be charged based on at least one of a resonance method, an induction method, and an electromagnetic wave method.
  • 23 is a conceptual diagram illustrating a criterion for determining near-field charging and far-field charging according to various embodiments of the present disclosure.
  • the first region 2310 having a distance from the wireless power transmitter 100 less than or equal to the first distance 2311 may be set as a short range charging region.
  • the second area 2320, wherein the distance of the wireless power transmitter 100 exceeds the first distance 2311 and is less than or equal to the second distance 2311, may be set as a remote charging area.
  • the wireless power transmitter 100 may charge the electronic device 2401 by forming the magnetic field 2230 according to a resonance method or an induction method.
  • the wireless power transmitter 100 may charge the electronic device 2342 by forming an RF wave 2331 according to an electromagnetic wave method.
  • the wireless power transmission apparatus 100 may include, for example, a range in which the efficiency of the resonance method is higher than the efficiency of the electromagnetic wave method, and the intensity of the power received by the electronic device by the resonance method is determined by the electromagnetic wave method.
  • a range higher than the intensity of power received by the electronic device may be set as the first area 2310.
  • the wireless power transmitter 100 may include a range in which power transmission by a resonance method satisfies an optimum EMI condition, or a range in which the magnitude of the magnetic field is less than or equal to a predetermined value (for example, 6.25 ⁇ T), or the like.
  • the apparatus 100 for transmitting power wirelessly may determine the first distance 2311 according to the type of the electronic device. For example, for an electronic device including a coil having a relatively high reactance, such as a TV, the wireless power transmitter 100 may set the first distance 2311 relatively large. Alternatively, for an electronic device including a coil having a relatively low reactance, such as a smart phone, the wireless power transmitter 100 may set the first distance 2311 to be relatively small.
  • 24A is a plan view illustrating a position of a coil and patch antenna array according to various embodiments of the present disclosure.
  • a coil 2401 may be positioned around a patch antenna array 2402 including a plurality of patch antennas.
  • Coil 2401 is shown as being wound twice, but this is merely exemplary and the number of turns of coil 2401 is unlimited.
  • 24B is a first side view as viewed from a first direction
  • FIG. 24C is a perspective view
  • FIG. 24D is a second side view as viewed from a second direction for describing the position of the coil and patch antenna array according to various embodiments of the present disclosure. Illustrated. As shown in FIGS.
  • a portion extending in the left and right directions of the coil 2401 may have a curved shape. Portions of the coils 2401 having a curved shape may be spaced apart from the patch antenna array 2402 by a predetermined distance. Accordingly, the magnetic field by the coil 2401 and the RF wave from the patch antenna array 2402 may not be interfered with. As shown in FIG. 24E, the RF wave 2441 from the patch antenna array 2402 can be well formed without the influence of the coil 2401, and as shown in FIG. 24F, formed in the coil 2401. The magnetic field 2442 can be well formed without the influence of the patch antenna array 2402.
  • An electronic device may also include a coil 2401 and a patch antenna array 2402.
  • the coil 2401 may be implemented in various forms such as a circle and an ellipse, and the patch antenna array may be manufactured in a relatively small size, and may be implemented in a flip type. It may be.
  • a coil 2500 may be disposed on the first surface 2510.
  • the patch antenna array 2501 may be disposed on the second surface 2511, and the patch antenna array 2502 may be disposed on the third surface 2512.
  • the first angle ⁇ 1 formed by the first surface 2510 and the second surface 2511 and the second angle ⁇ 2 formed by the first surface 2510 and the third surface 2512 may be the same or different.
  • At least one of the first angle ⁇ 1 or the second angle ⁇ 2 may be mechanically adjusted by the processor, and the wireless power transmission apparatus 100 may further include an actuator for adjusting the angles.
  • Each of the above-described components of the electronic device may be composed of one or more components, and the name of the corresponding component may vary according to the type of the electronic device.
  • the electronic device may be configured to include at least one of the above-described components, and some components may be omitted or further include other additional components.
  • some of the components of the electronic device according to various embodiments of the present disclosure may be combined to form a single entity, and thus may perform the same functions of the corresponding components before being combined.
  • module may refer to a unit that includes one or a combination of two or more of hardware, software, or firmware.
  • a “module” may be interchangeably used with terms such as, for example, unit, logic, logical block, component, or circuit.
  • the module may be a minimum unit or part of an integrally constructed part.
  • the module may be a minimum unit or part of performing one or more functions.
  • the “module” can be implemented mechanically or electronically.
  • a “module” is one of application-specific integrated circuit (ASIC) chips, field-programmable gate arrays (FPGAs), or programmable-logic devices that perform certain operations, known or developed in the future. It may include at least one.
  • ASIC application-specific integrated circuit
  • FPGAs field-programmable gate arrays
  • At least a portion of an apparatus (e.g., modules or functions thereof) or method (e.g., operations) may be, for example, computer-readable storage media in the form of a program module. It can be implemented as a command stored in. When the command is executed by a processor, the one or more processors may perform a function corresponding to the command.
  • the computer-readable storage medium may be, for example, a memory.
  • a storage medium storing instructions, wherein the instructions are configured to cause the at least one processor to perform at least one operation when executed by at least one processor, the at least one The operation of detecting may include: detecting an electronic device; Selecting at least one of a plurality of patch antennas or coils as a power transmission circuit for transmitting power for charging the electronic device; And controlling to transmit the power through at least one of the plurality of patch antennas or the coils according to the selection.
  • the instructions may be stored in an external server or may be downloaded and installed in an electronic device such as a wireless power transmitter. That is, the external server according to various embodiments of the present disclosure may store instructions that can be downloaded by the wireless power transmitter.
  • Modules or program modules according to various embodiments may include at least one or more of the above components, some may be omitted, or further include other components. Operations performed by modules, program modules, or other components in accordance with various embodiments may be executed in a sequential, parallel, repetitive, or heuristic manner. In addition, some operations may be executed in a different order, may be omitted, or other operations may be added.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention, selon divers modes de réalisation, concerne un dispositif de transmission d'énergie sans fil pouvant comprendre plusieurs antennes à plaque, une bobine et un processeur. Le processeur peut assurer une commande permettant de détecter un dispositif électronique, de sélectionner les plusieurs antennes à plaque et/ou la bobine en tant que circuit de transmission d'énergie pour transmettre de l'énergie permettant de charger le dispositif électronique, et de transmettre l'énergie au moyen des plusieurs antennes à plaque et/ou de la bobine conformément à la sélection.
PCT/KR2018/002066 2017-02-22 2018-02-20 Dispositif de transmission d'énergie sans fil, dispositif électronique recevant de l'énergie sans fil, et leur procédé de fonctionnement Ceased WO2018155881A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP18757957.8A EP3565087B1 (fr) 2017-02-22 2018-02-20 Émetteur d'énergie sans fil
CN201880013381.3A CN110383630B (zh) 2017-02-22 2018-02-20 无线电力发送器、无线地接收电力的电子设备及其操作方法
US16/488,155 US11183882B2 (en) 2017-02-22 2018-02-20 Wireless power transmitter, electronic device receiving power wirelessly, and method for operating same

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201762462020P 2017-02-22 2017-02-22
US62/462,020 2017-02-22
KR1020170051476A KR102392887B1 (ko) 2017-02-22 2017-04-21 무선 전력 송신 장치, 무선으로 전력을 수신하는 전자 장치 및 그 동작 방법
KR10-2017-0051476 2017-04-21

Publications (1)

Publication Number Publication Date
WO2018155881A1 true WO2018155881A1 (fr) 2018-08-30

Family

ID=63252837

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2018/002066 Ceased WO2018155881A1 (fr) 2017-02-22 2018-02-20 Dispositif de transmission d'énergie sans fil, dispositif électronique recevant de l'énergie sans fil, et leur procédé de fonctionnement

Country Status (2)

Country Link
KR (1) KR102392887B1 (fr)
WO (1) WO2018155881A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3861620A4 (fr) * 2018-11-06 2022-11-09 Humavox Ltd. Élément d'émission/réception bifonctionnel pour une charge sans fil
EP4156455A4 (fr) * 2020-11-04 2024-03-06 Samsung Electronics Co., Ltd. Système de puissance sans fil, appareil de transmission de puissance sans fil et procédé de commande d'appareil de transmission de puissance sans fil

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020085519A1 (fr) * 2018-10-22 2020-04-30 삼성전기 주식회사 Véhicule ayant des fonctions de communication de données et de transmission de puissance concernant un véhicule aérien sans pilote, et procédé de transmission ou de réception de signal de véhicule
KR102146431B1 (ko) * 2018-12-05 2020-08-20 정도훈 디지털 정보 디스플레이 기반 쌍방향 통신 장치
KR20220140197A (ko) * 2021-04-09 2022-10-18 삼성전자주식회사 안테나를 포함하는 전자 장치 및 안테나 제어 동작

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100134774A (ko) * 2008-04-21 2010-12-23 퀄컴 인코포레이티드 근거리 효율적인 무선 전력 송신
WO2011032048A1 (fr) * 2009-09-10 2011-03-17 Qualcomm Incorporated Transmission de puissance sans fil variable
KR20110125755A (ko) * 2010-05-14 2011-11-22 삼성전자주식회사 이동체를 이용한 전력 및 데이터 전송 장치 및 방법
US20110309689A1 (en) * 2010-06-17 2011-12-22 Semiconductor Energy Laboratory Co., Ltd. Electric power transmitting device, electric power receiving device, and power supply method using electric power transmitting and receiving devices
KR20140095655A (ko) * 2013-01-24 2014-08-04 서울대학교산학협력단 무선으로 전력을 전송하는 방법, 시스템 및 컴퓨터 판독 가능한 기록 매체
US20160100124A1 (en) 2013-05-10 2016-04-07 Energous Corporation Tv system with wireless power transmitter
US20160099755A1 (en) 2012-07-06 2016-04-07 Energous Corporation Methodology for multiple pocket-forming
US20160099611A1 (en) 2012-07-06 2016-04-07 Energous Corporation Wireless power transmission with selective range

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9407327B2 (en) * 2009-02-13 2016-08-02 Qualcomm Incorporated Wireless power for chargeable and charging devices
US8338991B2 (en) * 2009-03-20 2012-12-25 Qualcomm Incorporated Adaptive impedance tuning in wireless power transmission
US9887739B2 (en) * 2012-07-06 2018-02-06 Energous Corporation Systems and methods for wireless power transmission by comparing voltage levels associated with power waves transmitted by antennas of a plurality of antennas of a transmitter to determine appropriate phase adjustments for the power waves
WO2015200436A1 (fr) * 2014-06-24 2015-12-30 Board Of Trustees Of The University Of Alabama Systèmes et procédés de transmission d'énergie sans fil
KR20160125048A (ko) * 2015-04-21 2016-10-31 엘지이노텍 주식회사 네트워크 기반의 무선 전력 제어 방법 및 무선 전력 제어 장치 및 시스템

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100134774A (ko) * 2008-04-21 2010-12-23 퀄컴 인코포레이티드 근거리 효율적인 무선 전력 송신
WO2011032048A1 (fr) * 2009-09-10 2011-03-17 Qualcomm Incorporated Transmission de puissance sans fil variable
KR20110125755A (ko) * 2010-05-14 2011-11-22 삼성전자주식회사 이동체를 이용한 전력 및 데이터 전송 장치 및 방법
US20110309689A1 (en) * 2010-06-17 2011-12-22 Semiconductor Energy Laboratory Co., Ltd. Electric power transmitting device, electric power receiving device, and power supply method using electric power transmitting and receiving devices
US20160099755A1 (en) 2012-07-06 2016-04-07 Energous Corporation Methodology for multiple pocket-forming
US20160099611A1 (en) 2012-07-06 2016-04-07 Energous Corporation Wireless power transmission with selective range
KR20140095655A (ko) * 2013-01-24 2014-08-04 서울대학교산학협력단 무선으로 전력을 전송하는 방법, 시스템 및 컴퓨터 판독 가능한 기록 매체
US20160100124A1 (en) 2013-05-10 2016-04-07 Energous Corporation Tv system with wireless power transmitter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3861620A4 (fr) * 2018-11-06 2022-11-09 Humavox Ltd. Élément d'émission/réception bifonctionnel pour une charge sans fil
EP4156455A4 (fr) * 2020-11-04 2024-03-06 Samsung Electronics Co., Ltd. Système de puissance sans fil, appareil de transmission de puissance sans fil et procédé de commande d'appareil de transmission de puissance sans fil
US12176733B2 (en) 2020-11-04 2024-12-24 Samsung Electronics Co., Ltd. Wireless power system, wireless power transmitting apparatus and method for controlling wireless power transmitting apparatus

Also Published As

Publication number Publication date
KR102392887B1 (ko) 2022-05-03
KR20180097111A (ko) 2018-08-30

Similar Documents

Publication Publication Date Title
WO2018155881A1 (fr) Dispositif de transmission d'énergie sans fil, dispositif électronique recevant de l'énergie sans fil, et leur procédé de fonctionnement
WO2018117734A1 (fr) Émetteur de puissance sans fil, dispositif électronique, et procédés de commande correspondants
US11183882B2 (en) Wireless power transmitter, electronic device receiving power wirelessly, and method for operating same
WO2017171432A1 (fr) Dispositif de transmission d'énergie sans fil et son procédé de commande
WO2018174536A1 (fr) Appareil de transmission de puissance sans fil et procédé de transmission d'énergie sans fil en fonction d'un type de position
WO2017061716A1 (fr) Procédé et dispositif de guidage de l'alignement d'un dispositif de charge sans fil et système associé
WO2019208902A1 (fr) Dispositif de transmission d'énergie sans fil, et dispositif électronique destiné à la réception d'énergie sans fil et procédé de fonctionnement associé
WO2021060946A1 (fr) Dispositif d'émission/réception d'énergie sans fil et son procédé de fonctionnement
WO2017171435A1 (fr) Appareil de transmission d'énergie sans fil et procédé de commande de celui-ci
WO2021230598A1 (fr) Dispositif électronique de transmission ou de réception sans fil de puissance et son procédé de fonctionnement
WO2020075978A1 (fr) Procédé permettant de sélectionner un faisceau pour une communication, et dispositif électronique associé
WO2016171458A1 (fr) Procédé de commande de puissance sans fil basé sur un réseau, et appareil et système de commande de puissance sans fil
EP3568897A1 (fr) Émetteur d'énergie sans fil, dispositif électronique de réception d'énergie sans fil, et procédé de fonctionnement associé
WO2017196122A1 (fr) Dispositif de transmission d'énergie sans fil et procédé de commande
WO2021172782A1 (fr) Dispositif de charge sans fil et procédé permettant de charger un dispositif électronique l'utilisant
WO2016153280A1 (fr) Système de transmission d'énergie sans fil et de charge
WO2018190581A1 (fr) Émetteur d'énergie sans fil, dispositif électronique de réception d'énergie sans fil, et procédé de fonctionnement associé
WO2013022207A1 (fr) Système de transmission de puissance sans fil, et procédé et appareil servant à attribuer un canal de communication et à transmettre de la puissance dans un système de transmission de puissance sans fil
WO2017069469A1 (fr) Émetteur de puissance sans fil, récepteur de puissance sans fil et système sans fil pour transmettre et recevoir un signal sans fil, et procédé de fonctionnement associé
WO2017171399A2 (fr) Procédé et dispositif de transmission d'énergie sans fil
WO2022005262A1 (fr) Appareil de transmission de puissance sans fil et procédé d'affichage d'état de charge pour dispositif électronique l'utilisant
WO2018038422A1 (fr) Dispositif électronique de réception d'énergie sans fil et son procédé de commande
WO2020027432A1 (fr) Dispositif électronique comprenant une pluralité de bobines de charge sans fil et procédé d'activation associé
WO2018164376A1 (fr) Appareil de transmission de puissance sans fil et son procédé d'exploitation
WO2016099032A1 (fr) Appareil et procédé de réglage de la couverture de transmission d'énergie d'un réseau de transmission d'énergie sans fil

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18757957

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2018757957

Country of ref document: EP

Effective date: 20190731